Our People

The Attorneys & Team
Behind Your Plan

We work with clients over the years to review and update estate plans as families, assets, and life circumstances change.

Jennifer Knight

Jennifer Knight

Attorney at Law

J.M. Preston

J.M. Preston

Attorney at Law

Don V. Zoellner

Don V. Zoellner

Attorney at Law

John Preston

John Preston

Founder and Principal

Our director of operations keeps the office moving and running smoothly. Handling human resources, ensuring that each department's needs are met and they are collaborating with each other, overseeing the finances of the firm, putting out fires as they come up, and everything that happens in between are just a few of the many important things the Director of Operations is responsible for. If our law firm were an engine, the Director of Operations would be the mechanic that keeps it humming along.
Ken Wilson

Ken Wilson

Director of Operations, Finance

Client Stories

Trusted by California Families

John is just the ultimate professional and when I hear him speak, I feel my father’s estate is in good hands. To me, having a qualified estate planning group is of the utmost importance.

David Nerhood

Preston Estate Planning Client

I highly recommend Preston Estate Planning to anyone wanting estate planning assistance. The cost of preparing legal documents for our estate needs is so very worthwhile and gives me peace of mind that my legal matters are organized for me.

Vicki Wilson

Preston Estate Planning Client

We’ve both been working with Preston since 1998 and he’s done fabulous work for us and we love the seminars and the brochures that he sends us and his availability.

Carolyn Shields

Preston Estate Planning Client

He’s not just playing a role. I feel comfortable with him. He is compassionate. He explains things to people in terms that they can understand and grasp the idea. And the clients that I brought to him have stayed with him over the 17 years.

Lola Weisgerber

Preston Estate Planning Client