Amelia J. Mattis

Firm: Mattis Law, A.P.C.
Location: La Jolla - CA

  • 7730 Herschel Avenue, Suite N
    La Jolla, California 92037
  • Tel : 858-328-4400
  • Fax : N/A

Amelia J. Mattis is an owner in the law firm of Mattis Law, A.P.C.

Ms. Mattis has represented clients in a variety of complex family law issues and has successfully litigated multi-day trials on behalf of the firm. She has prevailed in court regarding child custody move-away and relocation issues, defeated unwarranted requests for restraining orders, obtained court-ordered domestic violence restraining orders (DVROS) for clients who needed protection, prevailed in a variety of child custody requests and in opposition to child custody order modifications.

She is adept at the DissoMaster™ program the family courts use to calculate support and is able to work with clients to give them a projection of what support orders they can expect to receive or pay, as well as how to successfully apply for a reduction or increase in support. She has prevailed in evidence hearings involving issues to terminate spousal support. Amelia is skilled in “discovery” issues (such as interrogatories and depositions), which has successfully allowed significant evidence to be received by the Court.

Attorney Mattis enjoys working closely with clients to help them communicate effectively to the Court the issues that are important to them. She understands the process can be overwhelming and confusing and ensures clients understand their rights and options. She is sensitive to the delicate nature of client concerns and has experience with cases where domestic violence or child abuse is alleged, as well as obtaining child welfare services (CWS) and police reports.

Amelia graduated law school cum laude and was a staff member and editor on her school’s law review. She was awarded several scholastic honors from her law school. Prior to that, Amelia graduated summa cum laude from the University of San Diego. She was a member of the Communications Studies Honor Roll.


  • J.D., Thomas Jefferson School of Law
  • B.A., University of San Diego


  • Thomas Jefferson School of Law Family Law Clinic
  • AmeriCorps Fellow, Catholic Charities Migration & Refugee Services
  • Casa Cornelia Law Center
  • Editor, Thomas Jefferson School of Law Review
  • Law Students for Reproductive Justice
  • International Law Society
  • Lambda Pi Eta
  • USDtv

Awards and Memberships

  • Included in the Marquis Who’s Who in America
  • La Jolla Bar Association
  • Favorite Family Law Attorney in the 2020 San Diego’s Best Union-Tribune Readers Poll
  • American Association of Attorney Advocates
  • Selected as a Rising Star by the American Institute Of Legal Advocates 2018
  • Designated Top 40 Under 40 in California by the American Academy of Attorneys 2018
  • Top 40 Young Lawyer with the National Alliance of Women in Law
  • Selected as Top 10 Family Law Attorney by Attorney And Practice Magazine
  • 10 Best Female Family Law Attorney 2020
  • American Institute of Legal Professionals – 2022 Lawyer of the Year Membership

Mattis Law, A.P.C.

Our team is able to handle any matter related to California domestic relations. We pride ourselves on being able to handle the most complicated divorce and child custody matters as well as the simple cases. We have obtained favorable results for our clients in cases where other firms said such results were not possible. Our number one priority is always to fight for the client’s wishes and to protect any interests they see as a priority.

San Diego family lawyer Amelia Mattis has been selected as one of the 10 Best Female Family Law Attorney 2020; her knowledge, experience, and reputation are unquestionable. Our office specializes in a wide range of family law matters, including:

Our extensive experience in family law provides us with a scope of knowledge that few other lawyers can match. At your initial consultation, we will begin determining the facts of your case and will also assess what your overall goals are. Rather than applying a “one size fits all” model, we will work with the elements of your individual situation. We have a proven track record of helping clients achieve results that other attorneys previously told them were unreachable.

How you handle your family law case will have lasting impact on your life, and you need to make sure you exit this situation in as a good a position as possible.

We employ several means to help our clients reach their desired ends. These include analyzing all possible community property issues, as well as complex property division, and whether you need a temporary protective order as a result of domestic violence. Once retained, we will take immediate steps to protect your interests. We will file any necessary motions, request needed injunctions, and take other steps to protect your safety, assets, and overall well-being. This is a critical time in your life, and we are aggressive family law lawyers who will treat it as such.

We will effectively move your case once your goals are established and a plan is developed. Throughout the process, we will keep you informed and will be available to answer all of your questions and concerns.