Seller Lawsuit with an assignee

[Harith Naga]

As a seller, what risk do I have if i allow a person (assignor) to assign to someone else? More likely to have lawsuits, etc?

[Tom Gimer]

No risk if the contract provides something similar to this: 

An assignment of this Agreement does not release the buyer from its responsibility for performance of its duties under the Agreement unless the seller so agrees in writing.

Keep buyer1 obligated to close in case buyer2 disappears.