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Attorney Andrew I. Martinez has devoted his entire legal career to helping people accused of crimes. He focuses his practice on defending people facing charges of homicide, attempted homicide, and sex-based crimes involving adults or children. He also handles cases involving allegations of domestic abuse. Attorney Martinez is an experienced and accomplished trial lawyer, having tried cases throughout Wisconsin on charges at all levels of severity. Together with Cole Ruby, he’s a two-time recipient of the Wisconsin Association of Criminal Defense Lawyers’ Hanson Award, each for winning a not-guilty verdict in a jury trial involving a charge of first-degree intentional homicide, the most serious crime under Wisconsin law. He also has a lengthy record of negotiating dismissals of cases, especially in sex-based crimes, thereby saving his clients the anxiety, risk, and expense associated with trial.
Attorney Martinez has also been a presenter at the State Public Defender’s annual conference and at the annual WACDL seminar.
Attorney Martinez is a native of Arizona, but moved to Wisconsin to attend law school at the UW in 2004. He was a senior managing editor of the Wisconsin Law Review. He is a founding partner of Martinez & Ruby, LLP, which he started with Attorney Cole Ruby in 2008.
Attorney Martinez is a native Spanish speaker, and has represented Spanish-speaking clients throughout his career.
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Chat withState: Wisconsin
Acquired: 2007
No misconduct found
State: Illinois
Acquired: 2007
No misconduct found
144 4th Ave # 2, Baraboo, WI, 53913-2179
7 Client Reviews
Showing 1 - 3 of 3 reviews | Recommendation
Posted by anonymous | December 30, 2025 | Hired Attorney | Criminal Defense
Highly Skilled, Honest, and Dedicated Representation
This review is long overdue, but I hope it helps anyone in need of an honest, knowledgeable, and down‑to‑earth attorney. I hired Andrew to represent a relative who was facing 1st Degree Intentional Homicide charges. I was initially worried, as I didn’t know him or fully understand how the legal syste...
Posted by Michael | May 14, 2020 | Hired Attorney | Criminal Defense
Attorney of the year
Criminal Defense Attorney Andrew l. Martinez is one of the brightest and mostboutstanding lawyers to date. He provides the attention and respect along with a keen attention to detail that is so necessary when fighting for ones life no matter the severity. Simply put, regardless of ones circumstances ...
Posted by anonymous | December 09, 2013 | Expungement
Excellent attorney
Mr Martinez is very professional. He was able to get my sons case expunged. When I contacted other attorneys in this area they basically said the best they could do was a fine and probation and it would still be on his record. Mr Martinez was able to get it off my sons record. He would answer all ou...
"It is a privilege to get to work with Andrew. He is a fantastic attorney and certainly one of the most knowledgable and accomplished defense attorneys in the State of Wisconsin for defending against sexual assault allegations."
"Andy is a skilled and zealous litigator with an impressive track record of acquittals, dismissals and favorable resolutions for his clients. I wouldn't hesitate to recommend him in the most serious of cases."
"I endorse this lawyer. Attorney Martinez is a hard working and effective defense attorney who I trust when I've got questions regarding cases in Sauk County."
Criminal defense lawyer
2020
Super Lawyer, SuperLawyers
2019
Martin Hanson Memorial Prize, Wisconsin Association of Criminal Defense Lawyers
2014
Martin Hanson Memorial Prize, Wisconsin Association of Criminal Defense Lawyers
2008 - Present
Partner, Martinez & Ruby, LLP
2010 - Present
Wisconsin Association of Criminal Defense LawyersMember
Motion to dismiss granted on multiple charges of child enticement and 1st degree sexual assault charge, some of which carry mandatory minimum sentencing of 25 years
Motion to dismiss granted on 1st degree sexual assault charge
Jury found client not guilty of 1st degree intentional homicide
Motion to dismiss granted on 1st degree sexual assault charge
Motion to dismiss granted on charges of repeated sexual assault of a child, incest with a child, causing child to view sexual activity, and causing mental harm to a child
2007
JD - Juris Doctor
2004
BA - Bachelor of Arts
2020
Looking Back to Learn and Go Forward: Ethics in the Age of a Pandemic
2020
Marsy's Law- What do we do now?
2019
Sad But True: Confirmation Bias, Metallica, and Murder
2017
2017 Wisconsin State Public Defender’s Annual Criminal Defense Conference
English
Spanish