Before "Party of Five," Lippman served as co-executive producers for the television series "Sisters," where they were writers for three years.Lippman was in his last year of law school at Harvard University when he met Keyser, then an undergraduate. After graduating in 1985, Keyser and Lippman moved to New York to pursue writing careers.
In 1988, Keyser and Lippman teamed up as writing partners and moved to Los Angeles. With Keyser's legal background, the two quickly became recognized as television writers who could handle legal storylines. They have written for several series including "L.A. Law," "Equal Justice" and "Eddie Dodd."
Lippman is also married and resides in Los Angeles.