Lehman joined the Vassar College men's tennis staff in the fall of 2017.
The former Lehigh University standout graduated from LU in 2017, where he went 10-8 overall and 6-1 in the Patriot League in doubles as a senior. He earned Patriot League Academic Honor Roll as a junior and senior, after walking onto the team as a freshman. Lehman graduated from Lehigh with a degree in civil engineering, with a minor in applied mathematics, and is a native of Oak Park, IL.