The Oaks Group at Morgan Stanley

With more than 124 years of combined industry experience* and over $2.2 billion** in assets under management, our team takes tremendous pride in helping you use your wealth to achieve what is most important to you.

That may mean providing an education to children and grandchildren, buying a vacation home, meeting the special needs of a family member, retiring ten years early — the list is endless, and the decision is uniquely your own.

Together, we will explore your aspirations and the life you envision. We will work with you to translate your goals into a specific investment objective and personalized investment strategy. And then, drawing on the team’s experience and resources of one of the world’s largest financial firms, we will structure a portfolio for you to help bring you closer to your definition of investment success.

In short, your goals become our focus, and working towards them becomes a commitment that we share. We find tremendous joy in our daily work and with the people we are honored to serve.

Welcome to The Oaks Group at Morgan Stanley.


* Seth Haye - 20 years in industry
Katie DuBois - 5 years in industry
Duncan Hizzey - 4 years in industry
Elisa Decker - 38 years in industry
Stephanie Hartmire - 19 years in industry
Clinton Spivey - 12 years in industry
Griselda Hernandez - 10 years in industry
Jason Tran - 16 years in industry
** As of August 2024
Services Include
Check the background of Our Firm and Investment Professionals on FINRA's BrokerCheck.*

In The Press

"2016-2019 Forbes America’s Top Next-Gen Wealth Advisors & Top Next-Gen Wealth Advisors Best-in-State (formerly referred to as Forbes America's Top Next-Gen Wealth Advisors, Forbes Top 1,000 Next-Gen Wealth Advisors, Forbes Top 500 Next Generation Wealth Advisors)
Source: Forbes.com (Awarded 2016-2019). Data compiled by SHOOK Research LLC based on 12-month period concluding in Mar of the year the award was issued."

"​2018-2024 Forbes Best-In- State Wealth Advisors
Source: Forbes.com (Awarded 2018-2022). Data compiled by SHOOK Research LLC based 12-month time period concluding in June of year prior to the issuance of the award."

"2020-2024 Barron's Top 1,200 Financial Advisors: State-by-State (formerly referred to as Barron's Top 1,000 Financial Advisors: State-by-State)
Source: Barrons.com (Awarded 2020-2022). Data compiled by Barron's based on 12-month period concluding in Sept of the year prior to the issuance of the award."

Working With You

Our Consultative Process 
 
Charting a prudent course to financial independence requires a well-conceived, personalized plan with defined long-term goals. Our wealth advisory consultative process can help you design a cohesive plan for the future that includes:

1 Discovery
We will begin by exploring many questions to try to capture what matters most to you and fully understand what you want to accomplish with your wealth. We will talk about you, the kind of lifestyle you enjoy, what worries you and what you are passionate about.

2 Analysis and recommendation

Based on our discussion, the team will analyze your personal and financial information, including liabilities, and assess risks and identify potential threats to your financial health. We will present you with a personalized plan.  

3 Implementation

After you have approved your wealth plan, we will work closely with you to implement it, bringing an objective approach, and paying special attention to how the various parts of your plan can affect, enhance and integrate with each other. Whatever approach we decide on, the team will help you keep your investments on track.

4 Reviewing objectives

We believe that ongoing communication is a vital component of our ongoing relationship, and we are committed to keeping abreast of your changing financial needs. Your financial documents provide the foundation for regular meetings, and the team will review your portfolio at your request and whenever you feel that your circumstances have changed.

Location

100 N Westlake Blvd
Ste 200
Westlake Village, CA 91362
US
Direct:
(805) 494-0215(805) 494-0215
Toll-Free:
(877) 494-0215(877) 494-0215

Meet The Oaks Group

About Seth A Haye

Seth Haye is a Managing Director, Financial Advisor, and Senior Portfolio Management Director at Morgan Stanley. Within this capacity, Seth serves as the senior partner of The Oaks Group at Morgan Stanley. Since 2004, Seth has provided leadership and guidance regarding all financial matters that impact the lives of his clients.

Seth was ranked by Forbes as the #1 Next-Gen Wealth Advisor in America in 2019, and The Oaks Group is currently ranked #1 by Forbes on the Best-In-State Wealth Management Teams list for 2025. Additionally, Barron’s has named Seth to the list of Top 1200 Financial Advisors In America each consecutive year since 2020 and The Oaks Group has been named to the list of America’s Top Wealth Management Teams for 2024.

Seth has been married to his high school sweetheart, Jolyn, since 2001. The couple met in Seattle and both attended Pepperdine University. They were engaged while spending an academic year in Florence, Italy and now live with their two children and one dog in Westlake Village, California.

Seth and Jolyn have been involved with multiple boards and organizations both domestically and abroad. Seth currently serves on the Board of Regents at Pepperdine University, where the couple has endowed a student scholarship and supported multiple strategic priorities of the president. Seth and Jolyn also consult and provide funding for several non-profit organizations in the Conejo Valley that support underprivileged youth. The Haye family has been actively involved in their local church for more than twenty years.

2016-2019 Forbes America’s Top Next-Gen Wealth Advisors & Top Next-Gen Wealth Advisors Best-in-State (formerly referred to as Forbes America's Top Next-Gen Wealth Advisors, Forbes Top 1,000 Next-Gen Wealth Advisors, Forbes Top 500 Next Generation Wealth Advisors)
Source: Forbes.com (Awarded 2016-2019). Data compiled by SHOOK Research LLC based on 12-month period concluding in Mar of the year the award was issued.

2018-2025 Forbes Best-In- State Wealth Advisors
Source: Forbes.com (Awarded 2018-2025). Data compiled by SHOOK Research LLC based 12-month time period concluding in June of year prior to the issuance of the award.

2020-2025 Barron's Top 1,200 Financial Advisors: State-by-State (formerly referred to as Barron's Top 1,000 Financial Advisors: State-by-State)
Source: Barrons.com (Awarded 2020-2025). Data compiled by Barron's based on 12-month period concluding in Sept of the year prior to the issuance of the award.

Award Disclosures: https://www.morganstanley.com/disclosures/awards-disclosure.html
Securities Agent: ME, FL, CT, WI, SD, UT, NM, NE, WA, NJ, IL, GA, TX, TN, PA, OR, ND, MO, ID, CO, AZ, NV, IA, HI, VT, VA, RI, OH, CA, IN, DE, AR, MT, MD, MA, LA, KS, DC, WY, NY, NH, MN, MI, KY, SC, OK, NC; General Securities Representative; Investment Advisor Representative; Managed Futures
NMLS#: 1279368
CA Insurance License #: 0E71484

About Katie DuBois

Katie DuBois is a Vice President, Financial Advisor with The Oaks Group. Katie’s focus is ensuring that clients are able to define their financial and personal goals to develop a well-rounded financial strategy that is conducive to achieving those goals. She does so through comprehensive financial planning and partnering with clients to assist in the educational foundation of markets and the economy. Katie believes that feeling confident with your financial future comes from both understanding of investments and a well developed plan.

Katie joined Morgan Stanley in 2018 after working in the technology recruiting industry. She graduated from UCLA with a B.A. in Economics in 3 years. Her study focused on International Trade, Economic Growth & Development, and Econometrics. Katie's passion is helping individuals and families make prudent, goal-oriented financial choices, so they can feel confident about their future and spend more time on the things they love in life. This commitment has earned Katie firm recognition. She has been named a Pacesetter's Club Member in 2021 and 2022 at Morgan Stanley.

Katie was born and raised in the Santa Clarita Valley. She now lives in Moorpark with her husband, Spencer, their daughter, and their two Labrador Retrievers, Chief and Harley. Katie spends her free time with a good read, at the gym/running Spartan races, and cheering for the New England Patriots.
Securities Agent: AR, NC, MO, LA, KY, CO, AZ, TX, RI, NV, DE, DC, SD, OH, NM, NH, ME, WY, WI, TN, NJ, MD, IL, NE, MT, MN, KS, GA, FL, CT, CA, VA, PA, MA, UT, MI, IA, ND, SC, OK, NY, HI, WA, OR, IN, ID; General Securities Representative; Investment Advisor Representative
NMLS#: 1894332
CA Insurance License #: 0M72710

About Duncan Hizzey

Duncan Hizzey is a Vice President and Financial Advisor with The Oaks Group at Morgan Stanley in Westlake Village, CA. Deeply committed to building strong trusting relationships with his clients, he focuses primarily on creating and managing financial plans to help a wide range of investors achieve their unique goals.

Duncan’s process begins with a discovery meeting, which enables him to gather all relevant information of a client’s financial life and what he or she would like to accomplish. From there, he employs his analytical skills to create a comprehensive financial plan designed to help achieve specific goals within the individual’s time horizon.

As for his investment philosophy, Duncan places as much importance on mitigating undue risk as he does on accumulating wealth over time.

Duncan joined Morgan Stanley in 2019 following a highly successful 17-year career in the health care industry that required him, not only to be knowledgeable, but sensitive, compassionate and understanding. His current clients greatly value those character traits in him.

Duncan graduated from Pepperdine University with a B.S. in International Business & Finance. Born and raised in the Pacific Northwest, he now lives in Thousand Oaks with his wife, Maya, and their three daughters (Lily, Naomi, and Claire). In his free time, Duncan enjoys working in the yard, following current events, and golfing with his family.
Securities Agent: NH, LA, WI, OK, NY, MI, MD, HI, GA, UT, SD, MT, FL, CO, ND, MA, CA, AZ, AR, TX, RI, OH, TN, PA, NV, NJ, MO, MN, ME, KS, SC, IA, DE, CT, WY, NE, KY, WA, VA, NC, IN, ID, DC, IL, VT, OR, NM; General Securities Representative; Investment Advisor Representative
NMLS#: 1949120

About Elisa Decker

Elisa is Assistant Vice President and Relationship Manager. She began her career with Morgan Stanley in 1986. She has responsibilities for client administration, client communications and trading. She has her BA - Liberal Studies from Cal State University in Northridge, California. She is Series 7, 63 and 65 licensed.

Elisa enjoys traveling, reading a good book, spending time with her adult children and dogs.

About Clint Spivey

Clint is a Consulting Group Analyst. His responsibilities include investment analysis, trading, retirement planning and project management. He earned his B.S. Business Economics degree from Saint Mary's College of California. He is Series 7, 63 and 65 licensed.

About Stephanie Hartmire

Stephanie is a senior registered client services associate. She began her career with Morgan Stanley in 2008. She is series 7 and 66 licensed. She earned her BA - Sociology Specialization in Business Administration from UCLA.

Stephanie enjoys hiking and the great outdoors with her husband, daughters and two dogs.

About Griselda Hernandez

Griselda is a Registered Client Service Associate. She began her career with Morgan Stanley in 2014, and is series 7 and 66 licensed. Griselda has a BS in Business Administration from California State University, Northridge.
Griselda enjoys traveling, cooking, and spending time with her husband, children, and two dogs.

About Jason Tran

Jason is a Registered Client Service Associate. He began his career with Morgan Stanley in 2022. He is series 7 and 66 licensed. He has a BS in Business Administration from Cal Poly Pomona.

Jason enjoys running and spending time with his son and daughter.
Wealth Management
Global Investment Office

Portfolio Insights

Retirement

Working with you to understand your life goals and develop a personalized wealth strategy. Today and for the years to come.
  • 401(k) Rollovers
  • IRA Plans
  • Retirement income strategies
  • Retirement plan participants
  • Annuities
4 Financially Smart Ways to Take Money Out of Retirement Accounts
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4 Financially Smart Ways to Take Money Out of Retirement Accounts

Discover how planning for required minimum distributions from retirement accounts can help you fund future needs and support loved ones.

Investing

Working closely with you to guide your wealth and investments through the most challenging market cycles.
  • Asset Management
  • Wealth Planning
  • Traditional Investments
  • Alternative Investments
  • Impact Investing
2025 Global Economic Outlook: U.S. Policies May Temper Global Growth
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2025 Global Economic Outlook: U.S. Policies May Temper Global Growth

Global growth is likely to be around 3% in 2025 and 2026, as tariff and immigration policies begin to slow the U.S. economy late next year, and China's underperformance restrains emerging markets.

Family

Creating customized financial strategies for the challenges that today’s families face.
  • Estate Planning Strategies
  • 529 Plans / Education Savings Planning
  • Long Term Care Insurance
  • Special Needs Planning
  • Trust Services
Taking Control of Your Finances After Death of a Spouse
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Taking Control of Your Finances After Death of a Spouse

Financial planning after a divorce or death can be trying, but with the right approach and the right advice you can turn a difficult situation into empowerment.

Business Planning

Helping you on key aspects of your business such as ownership, liquidity and developing opportunities.
  • Succession Planning
  • Business Planning
  • Qualified Retirement Plans
Financial Planning for Life After Selling a Business
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Financial Planning for Life After Selling a Business

Selling your business can mean big changes for your life, both personally and financially. Know how to make the most of your windfall.

Philanthropy

Making sure your philanthropic dollars are managed with the same high quality service as the rest of your wealth.
  • Endowments
  • Foundations
  • Donor Advised Funds
  • Impact Investing
Donor Advised Funds: A Smart Way to Manage Your Giving 
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Donor Advised Funds: A Smart Way to Manage Your Giving 

There’s more to charitable giving than you may realize. Here’s one method that may be a tax-efficient way to give and can help maximize your impact.

Wealth Management for Athletes and Entertainers

Understanding the unique financial challenges of athletes and entertainers and how they differ from one profession to the next, we deliver the experience and resources you need to help create and implement a comprehensive, multigenerational wealth management plan based on your needs, values and aspirations.
  • Investment Management
  • Wealth Transfer & Philanthropy
  • Private Banking Solutions
  • Family Governance & Wealth Education
  • Lifestyle Advisory
You are your Own CEO: Build a Dream Team for Your Career
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You are your Own CEO: Build a Dream Team for Your Career

Assembling a team of trusted professionals to manage your career—and your money—is essential to help best position you to thrive. Here’s how.

Financial Wellness

Enhancing Financial Wellness enables your workforce to do their best work. Companies that invest in financial wellness have an opportunity to:
  • Reduce employee stress,
  • Improve retention and engagement, and
  • Set themselves apart by offering comprehensive financial wellness benefits.
The Business Case for a Financially Resilient Workforce
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The Business Case for a Financially Resilient Workforce

In the face of turbulent markets, the word “resilience” may be top of mind. Broadly speaking, resilience is the ability to “bounce back” when encountering life’s inevitable challenges.
Ready to start a conversation? Contact The Oaks Group today.
Market Information Delayed 20 Minutes
1Morgan Stanley Wealth Management is the trade name of Morgan Stanley Smith Barney LLC, a registered broker-dealer in the United States.

For more information, please see the Morgan Stanley Smith Barney LLC Client Relationship Summary.

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2Morgan Stanley offers a wide array of brokerage and advisory services to its clients, each of which may create a different type of relationship with different obligations to you. Please consult with your Financial Advisor to understand these differences or review our Understanding Your Brokerage and Investment Advisory Relationships brochure available at www.morganstanley.com/wealth-relationshipwithms/pdfs/understandingyourrelationship.pdf.

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3Morgan Stanley’s investment advisory programs may require a minimum asset level and, depending on your specific investment objectives and financial position, may not be appropriate for you. Please see the Morgan Stanley Smith Barney LLC program disclosure brochure (the “Morgan Stanley ADV”) for more information in the investment advisory programs available. The Morgan Stanley ADV is available at www.morganstanley.com/ADV.

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4Morgan Stanley Smith Barney LLC (“Morgan Stanley”), its affiliates and Morgan Stanley Financial Advisors and Private Wealth Advisors do not provide tax or legal advice. Clients should consult their tax advisor for matters involving taxation and tax planning and their attorney for matters involving trust and estate planning and other legal matters.

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5Morgan Stanley Smith Barney LLC (“Morgan Stanley”), its affiliates and Morgan Stanley Financial Advisors and Private Wealth Advisors do not provide tax or legal advice. Clients should consult their tax advisor for matters involving taxation and tax planning and their attorney for matters involving trust and estate planning and other legal matters.

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6Investors should consider many factors before deciding which 529 plan is appropriate. Some of these factors include: the Plan’s investment options and the historical investment performance of these options, the Plan’s flexibility and features, the reputation and expertise of the Plan’s investment manager, Plan contribution limits and the federal and state tax benefits associated with an investment in the Plan. Some states, for example, offer favorable tax treatment and other benefits to their residents only if they invest in the state’s own Qualified Tuition Program. Investors should determine their home state’s tax treatment of 529 plans when considering whether to choose an in-state or out-of-state plan. Investors should consult with their tax or legal advisor before investing in any 529 Plan or contact their state tax division for more information. Morgan Stanley Smith Barney LLC does not provide tax and/or legal advice. Investors should review a Program Disclosure Statement, which contains more information on investment options, risk factors, fees and expenses and possible tax consequences.

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7When Morgan Stanley Smith Barney LLC, its affiliates and Morgan Stanley Financial Advisors and Private Wealth Advisors (collectively, “Morgan Stanley”) provide “investment advice” regarding a retirement or welfare benefit plan account, an individual retirement account or a Coverdell education savings account (“Retirement Account”), Morgan Stanley is a “fiduciary” as those terms are defined under the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), and/or the Internal Revenue Code of 1986 (the “Code”), as applicable. When Morgan Stanley provides investment education, takes orders on an unsolicited basis or otherwise does not provide “investment advice”, Morgan Stanley will not be considered a “fiduciary” under ERISA and/or the Code. For more information regarding Morgan Stanley’s role with respect to a Retirement Account, please visit www.morganstanley.com/disclosures/dol. Tax laws are complex and subject to change. Morgan Stanley does not provide tax or legal advice. Individuals are encouraged to consult their tax and legal advisors (a) before establishing a Retirement Account, and (b) regarding any potential tax, ERISA and related consequences of any investments or other transactions made with respect to a Retirement Account. Individuals should consult their tax advisor for matters involving taxation and tax planning and their attorney for matters involving trust and estate planning, charitable giving, philanthropic planning and other legal matters.

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8Insurance products are offered in conjunction with Morgan Stanley Smith Barney LLC’s licensed insurance agency affiliates.

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9Annuities are offered in conjunction with Morgan Stanley Smith Barney LLC’s licensed insurance agency affiliates.

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10Morgan Stanley Smith Barney LLC is a registered Broker/Dealer, Member SIPC, and not a bank. Where appropriate, Morgan Stanley Smith Barney LLC has entered into arrangements with banks and other third parties to assist in offering certain banking related products and services.

Investment, insurance and annuity products offered through Morgan Stanley Smith Barney LLC are: NOT FDIC INSURED | MAY LOSE VALUE | NOT BANK GUARANTEED | NOT A BANK DEPOSIT | NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY

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11Insurance products are offered in conjunction with Morgan Stanley Smith Barney LLC’s licensed insurance agency affiliates.

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Check the background of our Firm and Investment Professionals on FINRA's BrokerCheck*.

The information, products and services described here are intended only for individuals residing in states where this Financial Advisor is properly registered as described in this site.

Morgan Stanley reserves the right, to the extent permitted under applicable law, to retain and monitor all electronic communications. Morgan Stanley will not accept purchase or sale orders via any Internet site, social media site and/or its messaging systems. Morgan Stanley does not endorse and is not responsible and assumes no liability for content, products or services posted by third-parties on any Internet site, social media site and/or its messaging systems. All electronic communications are subject to terms available at the following link:
https://www.morganstanley.com/disclaimers/mswm-email.html. Any profiles and associated content are for U.S. residents only.

The securities/instruments, services, investments and investment strategies discussed in this material may not be appropriate for all investors. The appropriateness of a particular investment, investment strategy or service will depend on an investor's individual circumstances and objectives. Morgan Stanley Smith Barney LLC recommends that investors independently evaluate particular investments, strategies and services, and encourages investors to seek the advice of a Financial Advisor or Private Wealth Advisor. This material does not provide individually tailored investment advice. It has been prepared without regard to the individual financial circumstances and objectives of persons who receive it.

Morgan Stanley Smith Barney LLC (“Morgan Stanley”), its affiliates and Morgan Stanley Financial Advisors or Private Wealth Advisors do not provide tax or legal advice. Individuals should consult their tax advisor for matters involving taxation and tax planning and their attorney for legal matters.

Morgan Stanley Smith Barney LLC (“Morgan Stanley”) is not implying an affiliation, sponsorship, endorsement with/of the third party or that any monitoring is being done by Morgan Stanley of any information contained within the website. Morgan Stanley is not responsible for the information contained on the third-party website or the use of or inability to use such site. Nor do we guarantee their accuracy or completeness.

The views, opinions or advice contained within third party websites or materials are solely those of the author, who is not a Morgan Stanley employee, and do not necessarily reflect those of Morgan Stanley Smith Barney LLC, or its affiliates. The strategies and/or investments referenced may not be appropriate for all investors as the appropriateness of a particular investment or strategy will depend on an investor's individual circumstances and objectives.

*References to length of service at Morgan Stanley include years at Morgan Stanley and predecessor firms.

Certified Financial Planner Board of Standards Inc. owns the certification marks CFP®, CERTIFIED FINANCIAL PLANNER™ and federally registered CFP (with flame design) in the U.S, which it awards to individuals who successfully complete CFP Board’s initial and ongoing certification requirements.

The use of the CDFA designation does not permit the rendering of legal advice by Morgan Stanley or its Financial Advisors which may only be done by a licensed attorney.  The CDFA designation is not intended to imply that either Morgan Stanley or its Financial Advisors are acting as experts in this field.

Awards Disclosures
CRC 6491812 (04/2024)