Claire V. Costantino - A Cordell & Cordell Baltimore Divorce Attorney

Claire V. Costantino

Senior Litigation Attorney

Baltimore divorce attorney Claire V. CostantinoCordell & Cordell Baltimore divorce attorney Claire V. Costantino centers her practice on family law since she is passionate about working directly with clients.

Ms. Costantino’s family law experience ranges from high-conflict custody and divorce litigation to mediation. In addition to zealously representing clients in court and in settlement negotiations, Ms. Costantino is qualified to serve as a third-party neutral mediator to mediate family law matters.

“Family law cases catch a whole family at a critical transition point, and I am honored to have the chance to guide clients through that transition to a successful resolution,” Ms. Costantino said. “I became a lawyer because I wanted to help people solve important problems, and what could be more important than family?”

Ms. Costantino believes finding the humor in a situation makes any process easier. Family law cases can be very stressful for clients, so she tries to find a laugh when appropriate.

She also tells her clients to think of her like a partner in resolving their case since they both have important knowledge. The client knows what’s best for their family, what’s important to them, and what they want to achieve.

“I know how to navigate the court system, what tactics will best achieve their goals, and how to handle the surprises that come with litigation,” she said. “If we can get on the same page and work together, the case will go smoothly.”

Licenses & Admissions

Ms. Costantino is licensed to practice in Maryland. She is also a trained mediator and can provide mediation services.


Ms. Costantino earned her Bachelor of Arts with Highest Honors from Vanderbilt University. She received her Juris Doctor from the University of Maryland Carey School of Law.

Professional Experience

After graduating from law school, Ms. Costantino clerked for Family Magistrate Theresa A. Furnari in the Circuit Court for Baltimore City. Since her clerkship, she has practiced family law exclusively. She has some experience with estate matters and domestic violence proceedings. She also has training as a mediator and in collaborative practice.


  • Maryland Bar Association
  • U.S. District Court
  • Howard County Bar Association
  • Baltimore City Bar Association
  • Hartford County Bar Association
  • Baltimore County Bar Association


Ms. Costantino was recognized as a 2020 and 2021 Maryland Rising Star in the family law practice area by Super Lawyers, a Thomson Reuters rating service of outstanding lawyers.

Claire V. Costantino

Rated by Super Lawyers

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"​Claire was outstanding! I really felt like she was understanding and worked with me to make sure that I was happy. Things were done in a professional manner. -Craig L."
"​I trust her and feel like she is in my corner. She's been great!"
"​Oh Claire was great! I enjoyed working with her. She had a warm personality and she was easy to get along with. "
"Claire was amazing to work with.  She always responded right away and definitely on her A game.  She was wonderful."
"​Claire has been phenomenal, helpful and empathic.  She really worked hard to look out for my best interest."