Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci - Danville, CA
Estate Planning Lawyers in Danville, CA
630 San Ramon Valley Boulevard Suite 200 Danville, CA 94526
- 4 Super Lawyers®
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37
Years
Experience
Danville Estate Planning Law Firm
Updated: 03/09/2026
Areas of Practice
- Estate Planning
- Business Law
- Real Estate Law
Firm Information
Overview
Here at the law firm of Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci in Danville, California, we provide unmatched representation and support to clients throughout Contra Costa County and the surrounding areas of Northern California who have legal needs involving any of the following:
- Juvenile law
- Land use and real estate
- Business and contract law
- Education law
- Tax law
- Trust and estate planning
- Winery and vineyard law
- General civil litigation
Over the course of our history, we have gained a reputation for delivering innovative, cost-effective solutions for our clients. Our law firm's attorneys possess decades of combined legal experience, and we work as a team to leverage our respective strengths in order to provide the highest level of service possible to those we serve.
We have also received numerous testimonials and referrals from our satisfied clients. Additionally, we have gained the respect and trust of our peers, and our attorneys have earned many awards and honors, including AV Preeminent peer-review ratings* from Martindale-Hubbell as well as top attorney designations from various legal organizations.
No matter how complex or challenging your legal issues, you can rely on the attorneys at Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci to help you find the quality, effective solutions you seek. For more information, you can call our law office or visit our website to schedule a consultation. We promise to aggressively pursue the most favorable outcome on your behalf so that you can move forward in your life with confidence.
*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review RatingTM fall into two categories - legal ability and general ethical standards.
Awards and Honors
Super Lawyers® Selectees
Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci selected for a Super Lawyers® list
- Dodge, Lauren On a Super Lawyers® List
- Markowitz, Michael J. On a Super Lawyers® List
- McCoy, Gregory L. On a Super Lawyers® List
- Nix, Sarah S. On a Super Lawyers® List
Reviews
Customer Reviews for Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci
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Hired Law firm 2023-2024Rachel Margolis Chapman represented me for a case full of false accusations launched at me during an already traumatic time. Besides her expertise and astute insight through the complex narrative being thrown at me, she was thoroughly compassionate towards me as we navigated the rollercoaster of filings and discovery. I was impressed with her skill at guiding the court towards the truth. In the end, the court on record found me fully credible, and Rachel objectively went above and beyond to get the outcome that I fully deserved. Throughout the tumultuous ride, she not only provided top-notch professional legal guidance and strategy, but I felt that she sincerely connected as a true friend would in time of turmoil. That support helped *me* beyond the courtroom. I could not have asked for a better attorney for the case and wouldn't hesitate to recommend her.
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Hired Law firm 2019-2021I would like to share my experiences with Gagen/McCoy law firm. First off, they are very compassionate and caring about you as a person and empathetic on how you are feeling. I had never been arrested before and was navigating a very contentious divorce and custody battle. I cannot begin to say how important it was having Rachel Margolis Chapman defend me on my case. She is an absolute pro in her knowledge of the legal process but most importantly provided me a sense of calm and confidence in a VERY stressful situation. Her approach was well thought out and strategic in how she communicated with the DA's on my case. She was very honest with me on each potential outcome and laid out in detail the various ways in which I could navigate the best outcome. She always believed in me even when the allegations got more intense. In the courtroom she is very confident and I fully trusted in how she represented me. I could tell the prosecuters respected her and she was fearless and confident (not cocky) in laying out the facts of my case. Rachel is a tremendous litigator and a huge asset to her firm. I don't know what I would have done without her guidance and support in a very challenging time in my life. I'm happy to say that with her guidance I was able to get my charges reduced and eventually had the plea of "not guilty" placed permanently on my record. I would highly recommend Gagen/McCoy to anyone who needs a top-notch defense team and place Rachel Margolis Chapman at the top of your list who is someone I call a friend to this day. Thank you so much Rachel!
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Hired Law firm 2020-2021I had Rachel Margolis Chapman as my defense lawyer for a silly trespassing violation and I truly felt like she was there for my defense. She was easy to talk to and always replied promptly with any questions or concerns I had. She was very professional yet down to earth and I always felt like a valued client. With her help I was able to have a positive outcome from this ordeal. I would recommend her to anyone who faces charges and who wants a lawyer that actually cares about you and your case .
Attorneys
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Stephen T. Buehl
Shareholder
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William E. Gagen Jr.
Retired
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Barbara Duval Jewell
Attorney
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Charles A. Koss
Attorney
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Michael J. Markowitz
Retired
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Gregory L. McCoy
Shareholder
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Sarah S. Nix
Shareholder
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Robert M. Fanucci
Shareholder
Photo
Contact
630 San Ramon Valley Boulevard
Suite 200
Danville, CA 94526
Phone: 925-605-0357
Fax: (925) 838-5985
Email: Send a message
Website: https://www.gagenmccoy.com
Hours: Monday-Friday: 8:00am - 5:30pm, Saturday-Sunday: Closed
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