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Mary Tatum is a seasoned attorney with over 30 years of legal experience, including more than two decades as a Deputy District Attorney on California’s Central Coast. Raised along the California coastline, Mary’s upbringing instilled in her the values of integrity, perseverance, and compassion. She earned her undergraduate degree from California Lutheran University and her law degree from Ventura College of Law, paving the way for a distinguished career in law. As a prosecutor, Mary handled complex criminal cases with skill and dedication, earning widespread recognition and numerous accolades. Now, as the founder of Tatum Law Group, APC, she leverages her prosecutorial skills to deliver strategic, results-oriented defense solutions. Mary is deeply committed to her clients, offering tailored legal strategies and unwavering support. Whether protecting rights, seeking justice, or providing sound counsel, Mary approaches every case with diligence, respect, and a focus on achieving the best possible outcome.
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Free Consultation
$0 first 30 minutes
State: California
Acquired: 1988
No misconduct found
Mobile
1119 Palm St, Suite C, San Luis Obispo, CA, 93401
tatumlawapc.com/
27 Client Reviews
Showing 1 - 5 of 11 reviews | Recommendation
Posted by Earl | February 28, 2026 | Hired Attorney | DUI & DWI
Incredible Results - Both Felonies Dropped
I cannot recommend Mary Tatum highly enough. I was facing two life-altering charges - a felony DUI and a felony domestic violence charge - and the stakes for my future could not have been higher. From our very first meeting, Mary was a powerhouse. What impressed me most was her courtroom p...
Posted by Colette | October 11, 2025 | Hired Attorney | Criminal Defense
Totally Indebt to Mary
I live in Southern California and discovered I had a serious charge in San Luis Obispo. After calling several lawyers, I found Mary Tatum’s profile and left her a message. She called me back the same day, spoke with me for over an hour, and took my case. Mary kept me informed every step of the way an...
Posted by Charlotte | October 02, 2025 | Hired Attorney | Criminal Defense
Thank You Mary
There are not enough words to express my thanks to Mary for the help she gave my daughter with her case. This was a challenging case for Mary because my daughter does not have a criminal history and this was a very serious charge. We live six hours away from San Luis Obisbo and finding an attorney ...
Posted by Crystal | July 03, 2025 | Hired Attorney | Criminal Defense
Best Lawyer Ever
Mary was amazing she handled my case like a pro ... She kept me out of jail and with my family, she truly believed in me and sought justice In my case and we won ... against all odds she made sure in the interst of justice that I stayed out of custody and with my family. She truly was a blessing and ...
Posted by Ashleigh | June 25, 2025 | Hired Attorney | DUI & DWI
DUI in Morro Bay
I live in Clovis, Ca. We took a quick trip to Morro Bay for the weekend to celebrate a Birthday and Valentines Day. What should have been a happy trip with lots of good memories turned into a nightmare. I was arrested for a DUI. I contacted another lawyer who was not taking any new cases at the time,...
"Mary Tatum is a fierce advocate and compassionate advisor. She takes the time to thoroughly investigate and learn the facts of each case to ensure that she provides the best possible representation for each of her clients. Her legal experience is matched by her keen perception of people and their problems."
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2021
Resolution Recognizing Mary Tatum for her 23 of Service, Monterey County Board of Supervisors
1998 - 2021
Deputy District Attorney, Deputy District Attorney Monterey County
1988 - 1997
Deputy District Attorney, Deputy District Attorney Ventura County
2024 - Present
The Community Foundation San Luis Obispo CountyGrantmaking Committee Member
2022 - Present
Women's Lawyer's Association of San Luis Obispo CountyMember
2022 - Present
San Luis Obispo County Bar Association, Criminal Defense SectionMember
2022 - Present
San Luis Obispo County Bar Association, Labor and Employment Law SectionMember
1987
JD - Juris Doctor
1979
BS - Bachelor of Science
2024
2016
English
Spanish