About Us

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Karp and Weiss attorneys have developed substantial experience in many areas of the law, including criminal, civil, family and estate planning. We represent both plaintiffs and defendants, which gives us insight into the entire litigation process and enables us to provide the best possible representation for our clients. 

Karp & Weiss was founded in 1984 by three trial attorneys, with three diverse specialties, all with a mission to meet the special needs of their clients. Over 30 years later, the team at Karp & Weiss continues to achieve their mission of client satisfaction and a high quality of legal service in personal injury, criminal defense, probate and family law cases. 

Our lawyers are well known and highly respected litigators in Tucson. Leonard Karp and Laura Belleau are Fellows in the American Academy of Matrimonial Lawyers, Fellows in the International Academy of Family Lawyers and Diplomates in the American College of Family Trial Lawyers. Laura Belleau is a certified family law specialist. Leonard Karp was a recipient of the Foundation for Family Justice Lifetime Achievement Award. Steve Weiss was a recipient of the prestigious Tom Karas and Bob Hooker Criminal Justice Awards. Marissa Sites is an active member of several professional associations and a recipient of the 2019 40 Under 40 Award. 

Karp & Weiss attorneys are regularly invited to speak at seminars and educate other attorneys and judges about legal issues. Our lawyers have assumed leadership roles in both legal and community organizations. Karp & Weiss has earned an AV Martindale-Hubbell rating, which signifies the highest level of excellence for legal ability and ethical reputation.