He graduated from the University of Detroit Law School in 1950 and served as warrant officer in the Maritime Service with action in the Atlantic, Pacific and Indian theatres during World War II.

He served as Judge in the Michigan Court of Appeals 1st District from 1965 to 1976, being elected unopposed 1972 and resigned in 1976.

In 1974 Judge Lesinski was the subject of Detroit Free Press articles by David Johnston (later David Cay Johnston) and Ellen Grezch exposing his lavish spending of taxpayer money.

Judge Lesinski defended the spending, including buying fancier cars than the Michigan Supreme Court justices drove, saying "the dignity of the court" required top-of-the-line Oldsmobile 98s.

He was a Partner of the law firm of Lesinski & Paruk of Detroit and later a member of the law firm of Lesinski, Krall, Murphy & O'Neil of Detroit, Troy, and St. Clair Shores.