Thomas Michael Maas

PRO

Thomas Michael Maas

5.0
Rating: 9.0

Licensed for 28 years

Criminal defense Lawyer at Vallejo, CA
Practice Areas: Criminal Defense, DUI & DWI, Child Abuse

521 Georgia Street, Vallejo, CA

About Thomas

Biography

Practice Areas

3

Practice Areas

Criminal Defense 80%

28 years | 750 cases

80%
Child Abuse 10%

28 years | 25 cases

10%
DUI and DWI 10%

28 years | 35 cases

10%

Fees and Rates

Cost

Retainer

Sometimes


Payment Methods

  • Cash
  • Check
  • Credit Card

Licenses

Licensed in California for 28 years

State: California

Acquired: 1998

Active

No misconduct found

Location

Maas and Russo

521 Georgia Street, Vallejo, CA, 94590

maascriminaldefense.com

Online Presence

Other places you can find Thomas online.

Thomas Michael Maas's Reviews

Avvo Review Score

5.0 /5.0

17 Client Reviews

Filter Avvo Reviews (17) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 9 reviews | Advocacy

Posted by Ben | September 16, 2025

Highly recommend!

“I had an excellent experience working with Maas and Russo. From the very beginning, they were professional, responsive, and communicative. They always took the time to explain the process clearly and made sure I understood all of my options. What impressed me most was how dedicated they were — they ...worked tirelessly to achieve the best possible outcome for my situation. I truly felt supported every step of the way. I am very grateful for their hard work and expertise, and I would highly recommend Maas and Russo to anyone in need of knowledgeable and reliable representation.”

Posted by anonymous | March 19, 2025 | Hired Attorney | Criminal Defense

Simply the Best

Tom Maas doesn't just practice criminal law- it's his passion and calling in life. My case was extremely complex and Tom's command of the intricate details was amazing and unparalleled. Once my case commenced I had 100% of his time and attention. His court presence was commanding yet subtle and his l...aser-like focus allowed him to make crucial real-time adjustments. His paralegal Karen was equally amazing. Her unrivaled organizational skills enable Tom to perfect his craft. I have no reservations recommending Tom Maas as your criminal attorney.

Posted by Mario | April 07, 2017 | Hired Attorney | DUI & DWI

Thank you Stacey!! And the mass team!!

I hire mass law office to handle my dui case out of Solano county this dui happened 4 years ago. I thought the district attorney never filed the case but i was wrong I had a warrant for my arrest I contacted mass law firm to handle my case and my lawyer Stacey Barrett was the one that took on my cas...e and today after 7 months of her going to court fighting for my rights she got it dismissed! Theirs no words to explain how caring and professional she is since day one she showed compassion even tho i never meet her in person because I live in Orange county ca I felt i was in good hands threw this whole process. Thank you Stacey for everything you did for me my son my wife and myself will always be in debt with you! Thank you mass team for everything thank you!!

Posted by Alison | February 02, 2017 | Hired Attorney | DUI & DWI

Sharp, Diligent, Kind, Respected

Tom is very knowledgeable about DUI defense and diligent in reviewing and evaluating his client's case. He is strategic in navigating the court and the DMV from the beginning to achieve the best possible outcome for his client. He is also clearly respected by other officers of the court. When he sa...w a possible defense in my case, he pursued it tirelessly - which of course took a lot of additional time but with no additional cost to the flat fee I paid (worth every penny). Tom patiently explained the possible outcomes with blunt honesty. He was already pursuing the best sentence options for me when he defensed the case! He did not stop there, but pursued an acquittal so that I could get my driving privileges restored right away. Through all of this, his staff was very patient and kind with my frequent, stressed-out calls and questions. I hope you don't need a criminal defense attorney, but I have no reservations in recommending this group to handle your case.

Posted by Ricardo | January 31, 2017 | Hired Attorney | Criminal Defense

I highly recommend Mr, Maas

Mr. Maas is the best defense attorney in Solano County, He is fair, compassionate, and very smart. I was facing some serious time on some false accusations, I could possibly had spent the rest of my life behind bars but thankfully I hired Mr. Maas and because of his outstanding job I am freed today.

See All Client Reviews

Thomas Michael Maas's Lawyer Endorsements

Endorse Thomas
Boris Bindman headshot
Boris Bindman

Criminal defense lawyer | Jul 21

Relationship: Worked for lawyer

"Thomas Maas is a recognized expert in Criminal Defense. His knowledge of the law and skill in the courtroom are second to none. As one former client aptly put it, "he's the 800-pound gorilla in the room.""

Jeffrey L. Mendelman headshot
Jeffrey Mendelman

Criminal defense lawyer | Apr 08

Relationship: Fellow lawyer in community

"I endorse this lawyer. Mr. Maas is a zealous, effective, diligent, and compassionate advocate."

Laina Teresa Chikhani headshot
Laina Chikhani

Criminal defense lawyer | Jul 20

Relationship: Fellow lawyer in community

"I endorse this lawyer."

David Carl Beyersdorf headshot
David Beyersdorf

Criminal defense lawyer | Nov 10

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Jessica Loy Agnich headshot
Jessica Agnich

Criminal defense lawyer | Apr 17

Relationship: Fellow lawyer in community

"I endorse this lawyer."

View All Endorsements
Boris Bindman headshot
Boris Bindman

Criminal defense lawyer

Jeffrey L. Mendelman headshot
Jeffrey Mendelman

Criminal defense lawyer

Laina Teresa Chikhani headshot
Laina Chikhani

Criminal defense lawyer

Experience

Rating:  9.0 (Superb)

Honors

2015

Peer Review Rated, Martindale-Hubbell

2010

Rising Star, Super Lawyers

2009

Rising Star, SuperLawyers

Work Experience

1998 - 2007

Public Defender, Solano County Conflict Defender

1998 - 1998

Associate General Counsel, Law Offices of Louis Katz

Associations

California Public Defenders Association

Member

MAAS Law Offices

Attorney

2005 - 2008

California Attorneys for Criminal Justice

Board of Directors

Education

1997

Golden Gate University School of Law

JD - Juris Doctor

1993

University of Iowa

BA - Bachelor of Arts

Speaking Engagements

2007

Solano Public Defender Felony Training

Felony Sentencing

2006

Solano Public Defender Felony Training

Three Strikes Law

Languages

English

Activity

Avvo Rating

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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution