Msg#: 4010224 posted 6:17 pm on Oct 20, 2009 (gmt 0)
Send him a certified letter notifying him that you are trying to complete the transaction, but he needs to do his part. If he does not complete the process, the domain will expire, and there will be nothing that you can do.
Also, check with your registrar and see if there is anyway to "push" the transfer from your side. I assume you already have all the information needed (contact name, address, telephone).