About
Brittany L. Mirabella is a shareholder and vice president at Simpson & Deardorff, S.C. in Milwaukee and focuses on civil defense litigation. Mirabella represents individuals, businesses, and insurance carriers in personal injury, premises liability, transportation, construction, and insurance coverage disputes. Her work includes pre-litigation investigation as well as courtroom proceedings, allowing her to assist clients from the early assessment of a claim through motions, trial preparation, and appellate issues when necessary.
Mirabella earned a J.D. from Marquette University Law School in 2010 and a B.A., cum laude, from Marquette University in 2007. She also completed a Sports Law Certificate while in law school. Her academic background provided training in legal analysis, research, writing, and advocacy that supports a defense practice involving insurance contracts, liability questions, damages, and procedural issues. She joined Simpson & Deardorff in 2016 and became a shareholder in 2021.
Mirabella handles claims arising from motor vehicle and commercial trucking accidents, premises conditions, construction disputes, property damage, and insurance coverage questions. Her practice also includes bad faith and appellate litigation. She works with clients to investigate facts, assess liability and indemnity issues, analyze policy language, and prepare defenses to significant civil claims. This experience is particularly valuable when a dispute involves multiple parties, competing coverage positions, or substantial claimed damages.
Brittany L. Mirabella has received Wisconsin Rising Stars recognition and was named a Wisconsin Super Lawyer for 2026. Her practice combines insurance defense, coverage analysis, transportation litigation, and broader civil defense work. Mirabella helps clients manage claims through careful investigation, focused legal analysis, and practical case strategy, with attention to both the immediate litigation and the insurance or business considerations that may affect how a dispute should be resolved.
Law Office Affiliations
- Shareholder, Simpson & Deardorff
- Member, State Bar of Wisconsin
- Member, Illinois State Bar Association
- Member, Wisconsin Defense Counsel
- Vetted Wisconsin Member, The Gavel
Licensed State
- Wisconsin
- Illinois
Education
- Marquette University Law School
Juris Doctor (JD) - Marquette University
Bachelor of Arts (BA)
Awards & Badges



- Alternative Dispute Resolution
- Appeals
- Business Litigation
- Car Accidents
- Insurance
- Insurance Claims
- Insurance Defense
- Lawsuits & Disputes
- Litigation
- Personal Injury
- Professional Liability
- Property Disputes
- Slip & Fall Accidents
- Trucking Accidents
- Wrongful Death





