Broker doesn't like "And or Assigns" on Contract

[Account Closed]

I need a little help regarding a wholesale deal I posted on BP.  I am working with a Realtor to get a wholesale deal secured but we've hit a bump in the road..

The problem is that the Realtors' Broker at Coldwell Banker does not like the "And or Assigns" on the contract and does not want the Realtor using this phrase in a contract. The Broker seems worried that it's fishy/sketchy to not have the end buyer identified in the contract.  

The Realtor is hesitant that if he proceeds with the contract he may be jeopardizing his job, however, he is still open to seeing if there some way of making it work.

I'd love to hear what you think.  How can we make this work?