Legendary chicago lawyer Elmer Gertz, 92, is coming out of semi-retirement to help in a custody battle with fathers’ rights advocate Jeffery M. Leving.

“He practically invented civil rights law,” claimed Mr. Leving, of Jeffery M. Leving Ltd., who hopes that his co-counsel’s weighty reputation will make a difference in his case. Mr. Leving said that his client won custody of a child from the mother in a trial but that the order was stayed on appeal.