Conn. Gen. Stat. § 47-14i: Effect of death on contract by tenant to convey interest.

When any joint tenant enters into an enforceable contract to convey his interest, or a portion of his interest, severally or in conjunction with other joint tenants, and dies before the performance of the contract, such contract, to the extent that it would have been enforceable against the deceased joint tenant had he lived, shall be enforceable in rem against the interests accruing to the surviving joint tenant or joint tenants by reason of the death.