On May 13, 1966, Lynn was selected by the
St. Louis Hawks in the
1966 NBA draft. He was also selected in the fourth round of the 1966
North American Basketball League (NABL) draft by the Battle Creek Braves. He attended rookie camp with the Hawks in June 1966. On November 3, he signed with the Braves, Lynn also worked as a counsellor for the
Job Corps while he was playing for the Braves. He was invited to their training camp in September, Lynn was bought by the
Tri-Cities Flyers in January 1968. On February 8, Lynn was traded to the
Scranton Miners. He had averaged 20 points and 25 rebounds per game in three home appearances with the Flyers but disenchanted his head coach,
Gene Guarilia, who had tried to encourage Lynn to work on his defensive rebounding to return to the NBA. He joined the New Haven Elms in December 1968. On September 17, 1969, Lynn signed with the
Denver Rockets of the ABA. He became good friends with his teammate,
Spencer Haywood. On January 23, 1970, Lynn signed with the
Pittsburgh Pipers. He re-signed with the renamed Pittsburgh Condors for the 1970–71 ABA season on July 25, 1970, but was waived before the season started on August 22. Lynn claimed that he, Haywood and
Paul Silas "practically invented offensive rebounds." ==Personal life==