Assignment in Alabama

[Cheyenne Nafe]

Which direction to take? 

An Auction sales Contract was between an estate attorney & entity buyer, 

the first entity buyer was unable to come up with the finances, and the 2nd buyer came into play. 

However, how can we put this 2nd person in play without drafting an entirely new Auction Sales Contract, which would also now be subject to approval, AGAIN, and pushed through the probate court?

Can we assign this contract?  and draft an addendum with what actions we are taking if all parties agree to it.