David grew up in Pittsburgh, Pennsylvania and attended the University of Pittsburgh and Duquesne University where he graduated with a B.S. in Pharmacy. He worked as a full-time registered pharmacist for two years until moving to Michigan to pursue his education in law.
While attending Thomas M. Cooley Law School, David worked part-time with the law firm of ChurchWyble, P.C., now Grewal Law PLLC, until he graduated in 1985. At that time, he began working with the firm full-time, handling every facet of litigation and trial work. In 1990, he became a shareholder with the firm and continued handling all areas of litigation with an emphasis in medical, dental, and pharmacy, pharmacist negligence cases.