A strategic thinker and problem-solver, Keegan efficiently dissects legal issues to deliver positive client results.
Overview
Keegan focuses his practice on business and commercial litigation in both state and federal courts. His practice focuses on business torts, health and life insurance disputes and real estate disputes, and he has significant experience in shareholder disputes, zoning disputes, ERISA and life benefits litigation, and defending out-of-network provider common law claims against health insurers. Keegan's varied experience provides him with an in-depth understanding of the law across multiple subject areas and industries, enabling him to effectively and efficiently counsel clients with practical recommendations and creative solutions.
Experience
Business Torts
- Second-chaired an eight-day arbitration evidentiary hearing and defeated claims asserted by 50/50 shareholder alleging breach of fiduciary duty and improper use of company funds by client shareholder.
- Assisted in drafting winning appellate brief affirming judgment against controlling members of real estate development company for breach of fiduciary duty and misuse of company funds, affirming seven-figure judgment and divesting controlling members of ownership interests in favor of clients.
Insurance Disputes
- Successfully resolved seven-figure claim brought by out-of-network provider against health insurer asserting claims for underpayment on hundreds of health insurance claims.
- Successfully resolved claim relating to payment of accidental death life insurance benefits prior to commencement of litigation.
- Successfully resolved multiple ERISA claims in mediation.
- Successfully negotiated dismissal of contract claims brought by employer against health insurance company after moving for summary judgment on behalf of health insurance company.
- Drafted winning dispositive motion and delivered oral argument to defeat claim for breach of life insurance contract seeking payment of insurance proceeds.
Real Estate and Zoning Disputes
- Appeared before planning and zoning commissions and county boards throughout Missouri and Illinois to object to the construction of competing cell towers.
- Second-chaired a three-day arbitration to determine the fair market value of commercial property taken via eminent domain.
- Drafted multiple winning dispositive motions in real estate disputes, including defeat of prior-recorded mortgage lien in favor of insured lender, defeat of claims seeking to set aside property deeds in favor of insured property owner, and defeat of claims seeking to set aside insured lender's mortgage interest based on third-party fraud allegations.
- Drafted winning appellate brief confirming validity of foreclosure sale and curing title despite third-party fraud allegations.
- Successfully protected client's real property from bankruptcy trustee seeking title based on typographical error in vesting deeds.
News & Insights
News
Speaking Engagements
"What Does the Company Know? Selecting/Preparing the Company Designated Deposition Witness," ACC STL 2022 Corporate Counsel Institute, May 2022
Recognitions
Recognitions
Recognized on the Best Lawyers in America® "Ones to Watch" list, 2027
Professional & Civic Activities
Professional & Civic Activities
Young Friends Board, Legal Services of Eastern Missouri, Board Member
Stinson Pro Bono Committee, Member
Stinson Associate Development & Mentoring Committee, Member
Practices & Industries
Admissions
- Illinois, 2020
- Missouri, 2018
- U.S. District Court for the Northern District of Illinois, 2026
Education
Saint Louis University, J.D., magna cum laude, 2018
- Order of the Woolsack
- Saint Louis University Law Journal, Symposium Managing Editor
- Saint Louis University Law Journal, Best Student Comment
- Academic Excellence Awards: Constitutional Law II, Evidence and MO & IL Legal Research
- Teaching Assistant for Legal Research and Writing
Saint Louis University, B.S., Economics and Finance, 2014

