Westlake Village, California Office
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Kathy specializes in divorce financial planning, helping clients navigate major life transitions with clarity. She supports men and women through asset decisions, cash-flow planning, and long-term security. Her work emphasizes education, organization, and confidence.
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Kathy has worked in financial services since 1987, with experience spanning lending, public finance, and advisory roles. She earned a degree in International Studies from Miami University, graduating magna cum laude and Phi Beta Kappa. She holds the Certified Divorce Financial Analyst® designation. She is active in divorce-professional networks and has held chapter leadership roles.
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Kathy’s approach is empathetic, structured, and practical. She helps clients understand options, evaluate trade-offs, and move forward with a clear plan. She believes informed decisions reduce stress during difficult transitions.
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Kathy enjoys hiking, kayaking, paddleboarding, and tennis. She volunteers with the Cystic Fibrosis Foundation and supports local fundraising initiatives. She loves time with her three children and her dog, Tanner.
Client Testimonials:
- "After interviewing several financial advisors, I knew right away that Kathy was the right fit. She has a rare ability to understand not just the financial implications of decisions, but the emotional ones as well. As a widow, that level of understanding and care made all the difference. Kathy approached my planning with thoughtfulness, empathy, and clarity, and I felt truly supported every step of the way. I’ve been investing for more than 30 years, and Kathy is the best advisor I’ve ever had. I rely on her guidance and trust her completely. I recommend her without hesitation to anyone looking for an advisor who genuinely has your back, especially women who want to feel understood, comfortable, and confident." (1) - Natalie B., 2/5/26, Client of Kathy Costas
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“My husband and I moved our investment accounts to Kathy Costas at EP Wealth over 8 years ago. We continue to be impressed with the level of service and communication about our entire financial plan. Not only is Kathy a fantastic advisor to help us grow our money, she guides us on taxes, estate planning with our trust and other assets we have in our employer 401k plans. We are well taken care of.” (1) - DM, 1/29/26, Client of Kathy Costas
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“Working with Kathy Costas has been such a positive experience. Kathy really listens, explains things clearly, and genuinely cares about helping people move forward in their financial plan with confidence. I have been a client for a number of years and always find Kathy to be accessible and willing to answer any question I may have. I would recommend her wholeheartedly to anyone seeking a knowledgeable and truly client-centered advisor.” (1) - Stefanie A., 1/28/26, Client of Kathy Costas
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“I have been working for Kathy Costas for many years now. She and her team have managed my finances in ways that have given me some freedom during crushing times with my ex-huband. I only wish I had known her while i was going through my divorce. I have no doubt she would have been advised me not go into some investments which were not beneficial to me in the long run. I find Kathy to be always up on the latest trends and is able to communicate her information with clarity and warmth.” (1) - Susan B., 1/27/26, Client of Kathy Costas
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“1000 characters isn't nearly enough words for me to gush over Kathy Costas. She has been a life-changer as a devoted advisor and financial planner. Kathy is responsive, thoughtful, compassionate, not to mention knowledgeable about all things money-related, on everything from personal goals to global markets. Our relationship started before my divorce, and I wouldn't be where I am today without her guidance. She's simply the best.” (1) - Lisa U., 1/23/26, Client of Kathy Costas
1. The testimonial reflects the client's personal experience with Kathy Costas and/or EP Wealth Advisors, LLC (EPWA) and is not representative of the views or the experience of other clients with Kathy Costas or EPWA. No compensation was given for this feedback. EPWA encouraged clients to provide an endorsement targeting clients who they felt would provide a positive endorsement.
Connect with Kathy
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