About

Thomas Simon Leonard is an experienced attorney with more than 32 years of legal practice, serving clients through Leonard and Assoc. in Tinley Park, Illinois. He concentrates his practice in estate planning, land use and zoning, and tax law, advising individuals, families, and businesses on important legal and financial matters that can have long-term consequences. Known for a practical and detail-oriented approach, Mr. Leonard helps clients navigate complex legal issues with clarity and confidence. In his estate planning practice, Thomas Simon Leonard works with clients to develop thoughtful strategies designed to protect assets, preserve family interests, and address future needs. His land use and zoning work supports property owners, developers, and other stakeholders in addressing local regulatory requirements and land-related challenges. In addition, his tax practice allows him to guide clients through matters where legal planning and tax implications intersect, helping them make informed decisions with an eye toward efficiency and compliance. Throughout his career, Mr. Leonard has built a reputation for providing attentive service and sound legal guidance tailored to each client’s goals. He understands that legal matters involving property, taxation, and planning often require both technical knowledge and a measured, solutions-focused perspective. Clients turn to him for experienced counsel, responsive communication, and a commitment to helping them move forward with confidence.

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