Passalacqua, Mazzoni, Gladden, Lopez & Maraviglia, LLP

Estate Planning, Trusts and Probate, Business Law, Real Estate, Litigation, and Family Law
Call Us Today

Our firm has served Healdsburg and greater Sonoma County for over 70 years.  We trace our roots back to 1936 when the firm was founded by Francis M. Passalacqua, and soon thereafter expanded by James R. Mazzoni, Jr.  Each of our founders have been honored with Careers of Distinction awards from the Sonoma County Bar Association.  We continue this tradition of service by providing vigorous and effective representation to a variety of clients, from corporations to small businesses, families and individuals, in the areas of Estate Planning, Trusts and Probate, Business Law, Real Estate, Litigation, and Family Law.  In addition, we provide a full range of services for the Vineyard and Wine Industries.

Your Justice Is Our Priority

We pride ourselves in developing great working relationships with our clients and with the community that we serve.  We are honored to be voted BEST LAW FIRM for Sonoma, Marin and Napa Counties in the annual NORTH BAY BIZ Magazine Reader’s Poll.

For further information on how we can assist you, please contact us by phone, at 707-433-3363 or by email.



Francis M. Passalacqua (1910-2005)  •  James R. Mazzoni, Jr. (1932-2010)

Mark L. Gladden

Mark L. Gladden


Lourdes Lopez

Lourdes Lopez


Daniele L. Maraviglia

Daniele L. Maraviglia


Our Practice

Our firm provides a full range of services in the following practice fields:

Business Law

  • Business Transactions, including Mergers and Acquisitions
  • Corporations, Limited Liability Companies, Partnerships and Family Limited Partnerships
  • Intellectual Property and Trademarks

Family and Civil Law & Litigation

  • Civil Litigation, Arbitration and Mediation
  • Family Law, including Collaborative Practice
  • Personal Injury
Passalacqua, Mazzoni, Gladden, Lopez & Maraviglia, LLP

Estate and Succession Planning

  • Probate and Trust Administration
  • Wills, Trusts and Estate and Succession Planning

Real Estate & Vineyard Law

  • Real Estate Transactions and Litigation
  • Vineyard and Wine Law


Community Service

The Salvation Army

The Healdsburg School

St. John’s Catholic School

Dry Creek Agricultural Water Users

Alexander Valley Hall

Community Foundation of Sonoma County

Healdsburg Area Fund of the Community Foundation

Healdsburg Museum and Historical Society

Healdsburg Kiwanis Club

Healdsburg Rotary Club

Healdsburg Area Chamber of Commerce

Healdsburg General Hospital

Healdsburg Public Improvement Corporation

Sonoma County Bar Association

Housing for Healdsburg Corporation (affordable housing)

Santa Rosa Memorial Hospital

My Body is Healthy, Inc.

Healdsburg Cultural Trust.

Northern Sonoma Health Care Foundation

Community Child Care Council of Sonoma County

Plaza Art Center

Healdsburg Performing Arts Theater, Inc.

Russian River Chamber Music Society

Healdsburg Jazz Festival

Healdsburg Little League

Healdsburg Boys and Girls Club

Healdsburg Animal Shelter

Healdsburg Ballet

Ursuline and Cardinal Newman High Schools.

Let’s Work Together