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Zimmer, Mathiesen & Associates

A Winning Team At Your Side!

About Zimmer, Mathiesen & Associates

Zimmer, Mathiesen & Associates, has gained its reputation and recognition all across Long Island as an aggressive, compassionate and highly effective family law and divorce law firm in Suffolk County. This has led to countless awards and recognition by the highest and most regarded entities in the Law circuit and locally in Long Island.

Our mission is to treat each individual with the highest level of ethics, show compassion, work with professionalism, and bring aggressive representation to the court of law. We understand that no case is ever the same, so we will meet with you and listen to all your concerns, ask all the necessary questions to help us understand your situation, and work together to help you reach a satisfactory resolution.

We’re conveniently located in Commack and welcome clients every day from any surrounding cities in Suffolk County.

Looking for Aggressive, Compassionate and Highly Effective representation for your family law matter?

Call us today for a free consultation. 

FREE Divorce Consultation


After doing extensive research and my due diligence to find the right firm for me, Todd J Zimmer and Associates was 100% the right decision. I initially spoke with Todd who was sincere and sympathetic to my situation being I had a premature daughter and was heading into a custody battle. He said that his associate Stephanie Mathiesen would be representing me and assured me she is GREAT at what she does! I could write over and over praise for Stephanie, but for me the fact that my family and friends who have stood by me during this difficult time have basically looked at Stephanie as a apart of my family instead of just being my lawyer. She has a passion and drive to do what is right for her clients, she has a amazing way of taking a hectic situation and pacifying it with out diminishing its seriousness. She has a firey way about her and gets it DONE! She’s responds to all my emails and phone calls ASAP. All these stories and negative stigmas about attorneys are with out a doubt negated by Stephanie and the Zimmer Firm.

Justin M.


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