Broker that does Medallion Stamps?

My wife is going round and round regarding getting some replacement shares for a trust she executes. Computershare is asking for an affidavit with a Medallion Stamp. Our full service broker says they don't do those. Does anybody know which full service broker would be good for 1) a Medallion Stamp 2) dealing with Computershare?

 

here you go

http://www.craftydevilspapercraft.co.uk/2-medallion-stamps.asp

 

Now try here.

http://www.stai.org/index.php

 

Aha.... so the STA is the Medallion insurer. I have to learn all these folks jobs at the current brokerage so I can get them to proceed, that is a big step... I'll walk, nay, stride confidently right in there tomorrow and say in a booming voice "I presume that you are members of the STA?"