Amos, Muffoletto & Mack, LLC

Attorneys at Law

Covering the Entire State of Maryland 



















Photo by Mike Cavanaugh







3300 N. Ridge Road, Ste 140   

Ellicott City, MD 21043   

T: 410-465-4665   

F: 410-465-9330   




Claire V. Costantino

Associate Attorney

Claire completed her undergraduate degree at Vanderbilt University, earning a degree in history with highest honors with a minor in political science. Claire is originally from Texas, but quickly adopted Baltimore her new home.

Claire is a graduate of the University of Maryland School of Law where she served as President of the Alternative Dispute Resolution Team and honed  her while a student attorney in the Mediation Clinic, as well as  her internship at the Women’s Law Center. These skills were recognized when she was named co-champion at the 2013 ABA Regional Negotiation Competition.

Claire added practical experience to her academic achievements through her law clerk positions with several local family law firms, interning with the Honorable Judge Christopher Panos in the District Court for Baltimore City, and completing a clerkship with Family Magistrate Theresa A. Furnari in the Circuit Court for Baltimore City. 


Claire joined the firm in 2015, is a trained mediator and concentrates her practice on family law and collaborative law.