Swapping "Seller" on a Land Contract

[Mark Jacobsen]

Looking for the best options to acheive what amounts to the change of the "seller" in a land contract without triggering gift taxes or other "additional" fees. Specifically, SellerA and BuyerZ entered into a land contract in 2014 for a total purchase price of $80k. Currently, there is approx a $60k balance and the home is likely worth approx $100k. Now, SellerB (BuyerZ's son) would like to take over SellerA's interest/ownership (thereby cutting SellerA out of the picture completely) and have BuyerZ (his mom) make payments on the remaining $60k to him (over a longer period than the original contract between SellerA and BuyerZ). Hopefully, that makes sense.

My one current idea was to see if SellerA would assign/transfer the land contract to SellerB, and then just have SellerB restructure the payments. Thoughts? Is there a better way to do this?