Professional Fiduciaries, Trustees, and Conservators

Since 2005 serving as trustees, conservators of the person and/or estate, or handling decedent estate administration for clients primarily in Santa Clara and San Mateo Counties. Over 40 years of combined experience in the health care and pharmaceutical field.  Experienced with managing multi-million dollar financial plans, assessing and analyzing needs, managing multi-level projects and organizing cross-sectional team efforts.


Fiduciary Relationship Building

Extensive experience with senior corporate executives, corporate finance departments, external auditors, & legal counsel, portfolio managers, investors and regulatory agencies.  Experience includes working with stock transfer agents, stock brokerage firms, and limited partnership investments. Extensive knowledge of pharmaceuticals and geriatric drugs.


Fiduciary Duty

Skilled at looking at the big picture and evaluating what needs to be done to best serve the client.  Able to listen well and act quickly and appropriately.

  • California Licensed Professional Fiduciary (CLPF)

  • National Registered Guardian (NRG)

  • General Member of the Professional Fiduciary Association of California  (PFAC)

  • Non-attorney member of the Silicon Valley Bar Association



Joyce Anthony, CLPF #25


Joyce Anthony, co-owner of Prime Fiduciary Services, enjoys working with individuals and families to bring them peace of mind. She is available to act when the need arises and keeps an open mind on how best to handle the day-to-day wishes as well as the long-term needs. She excels in the art of listening and finding ways to create a positive outcome. Her clients’ best interests come first and she works in a respectful and efficient manner.

Joyce is a graduate of the University of California, Santa Barbara with a BA in Sociology.

Prior to starting Prime Fiduciary Services, Joyce had a successful career in the pharmaceutical and health care field, primarily with ALZA Corporation.

She is a Past President of the Professional Fiduciary Association of California, along with many other leadership positions, and is a frequent presenter at professional fiduciary meetings.

California Licensed Professional Fiduciary |

Bonnie Burdett, CLPF #24


Bonnie Burdett, co-owner of Prime Fiduciary Services, enjoys serving as an advocate for her clients, putting their needs first and making sure their physical safety, personal happiness, health and welfare are best served at all times.

Prior to starting Prime Fiduciary Services, Bonnie had a successful career for 25 years in investor and corporate relations at ALZA Corporation, a pharmaceutical and drug delivery company, and later as a consultant helping medical device and biotechnology companies raise equity. Bonnie has a Sociology degree from University of California, Santa Barbara.

She has held leadership positions in the Professional Fiduciary Association of California and is an active member of the Los Altos Rotary Club and other organizations.

California Licensed Professional Fiduciary |

Sheila Bradford, CLPF #1005

Screen Shot 2018-11-19 at 6.25.04 PM.png

Sheila Bradford enjoys assisting with life transitions by working collaboratively with individuals and family members. She works diligently and professionally to address her clients’ needs while being mindful of their wishes and best interests.

Sheila has a B.S. in Combined Sciences and an M.B.A. from Santa Clara University.

Prior to joining Prime Fiduciary Services, Sheila had a successful career in the biopharmaceutical industry in product management and alliance management roles, primarily at ALZA Corporation.

Sheila is a member of the Professional Fiduciary Association of California.

Professional Fiduciary and National Certified Guardian |


What Our Clients Say About Us


As a friend of Ms. P’s I believe that one of the smartest decisions she ever made was to hire you as her fiduciary. From the first time I met you – at the primary care doctor’s office – I felt that you were someone who could be trusted. This took away many of my worries and concerns about how Ms. P was doing and what would happen to her if she became unable to take care of herself. The places you chose for her, and the choices you helped her make, made a major difference in her life. Ms. P was a special lady and I am grateful for the way you handled her affairs.
— Lisa P.

Peace of mind

As a conservator for my loved one, I have worked with Prime Fiduciary Servicesas trustee for almost five years. I was hesitant to get a third party involved, but my concerns were very quickly dissolved. They were extremely competent, thorough and understanding of my situation. We worked together very well and I would highly recommend them to anyone in need of a fiduciary.
— Susan P., San Jose

High standards

I represent Prime Fiduciary Services on several matters that require legal counsel. I am extremely comfortable doing so, because they adhere to the standards expected of fiduciaries. Not only are they careful, prudent and attentive to the myriad details involved in their business but they advocate tirelessly for their client’s best interest. I believe professional fiduciaries have an important role in trust, probate and conservatorship practice, and Bonnie Burdett and Joyce Anthony are among the best.
— Rebeccah B. Miller, Lakin Spears, LLP, Palo Alto, CA

Superb value

Whenever I think about my Dad, and his situation after my Mom passed away, I can’t help thinking about how our decision to select Prime Fiduciary was, without a doubt, the best decision we made for him. Only sorry we didn’t get there much sooner. Suspect I will always be grateful for the role you played (and how exceptionally good you are at it) every time I think about either of my folks, or brothers for that matter. So grateful you were there to make things right….defined as the way my folks had intended. To leave things the way they were would have been immoral. I know you work crazy long hours. I hope you know how much value you produce far beyond the monetary. I knew my Dad pretty well. I know he would have been grateful to his core.
— Judith P.

Taking care of everything

Losing my significant other was very hard on me, and it was comforting to know that you were taking care of everything. I don’t think I could have survived without your support and also for the kindness of all the Prime Fiduciary staff during this very difficult period.
— Katherine W.

Honest, competent and hard-working

I’ve represented Bonnie Burdett and Joyce Anthony on several matters. They are honest, competent and hard-working ladies, and represent two of the more competent private professional fiduciaries in the area.
— Richard A. Gorini, Esq., Boskovich, Gorini & Vanasse, San Jose, CA

Feel free to contact us with all your questions. We’re here to help.