Chandler meets Jack Gellar to discuss the issue in the steam room. When Jack explaind he understands he says, "When I first met Judy's parents I was unemployed, so I told them I was a lawyer." Chandler asks what they done when they found out?. Jack replies "They never did, so if you ever see me given THEM legal advice just nod along".

We already know from TOW Nana Dies that Judy's Mum is dead.

How can Jack give 'THEM' legal advice????