About
Jonathan F. Dalton is an attorney who counsels organizations and individuals on business transactions, government relations, and regulatory affairs. He helps established and emerging businesses plan for growth, financing, governance, and organizational structure. His clients include manufacturers, real estate developers, health care providers, pharmaceutical companies, schools, e-commerce businesses, and professionals. He combines legal judgment with public policy strategy to help clients pursue practical goals and manage complex decisions effectively across industries.
Jonathan earned his J.D., cum laude, from Saint Louis University School of Law. He also holds a B.A. in Economics from the University of Missouri. During law school, he served as Health Law Editor for the Saint Louis University Law Journal. His education supports his work in business planning, regulation, health care, governance, and public policy matters.
Jonathan began his legal career in legislative and regulatory affairs at the federal level. He worked in Washington, D.C., on major bills before Congress and issues involving federal agencies. After returning to Missouri, he focused on business transactions involving state and local government matters. His experience includes lobbying, administrative law, compliance issues, and advising clients affected by taxation, competition, intellectual property, and business regulation across many industries nationwide and beyond.
Jonathan F. Dalton helps clients in highly regulated fields, including securities, health care, education, banking, insurance, and economic development. He also works with trade associations and allied organizations seeking policy change. His background as an attorney and elected public official gives him a strong understanding of government processes. He helps clients respond to regulatory challenges, shape strategy, and pursue solutions that protect their interests and support long-term success with confidence and care.
Law Office Affiliations
- Partner, Armstrong Teasdale LLP
- Member, American Bar Association
- Member, Missouri Bar Association
- Member, Illinois State Bar Association
- Member, American Health Lawyers Association
- Member, Missouri Health Care Association
Licensed State
- Illinois
- Missouri
Education
- Saint Louis University School of Law
Juris Doctor (JD) - University of Missouri
Bachelor of Arts (BA)
Awards & Badges




- Corporate & Incorporation
- Mergers & Acquisitions
- Construction & Development




