* u- T/ B( S+ D5 \- T" _: F
First thing first, see your lawyer and he (not anyone from this forum can do better) will have all the professional advice for you.$ S$ C' ~( ]3 a: ^
Talk to your lawyer about all details you have agreed with the seller, your lawyer will write up an offer and contact with the seller's lawyer and/or agent (whoever the lawyer thinks fit)