“When the owner of an estate contracts with a purchaser for the immediate sale of it, the ownership of the estate is in Equity transferred by that contract.”
“The vendor is not a mere trustee; he is in progress towards it, and finally becomes such when the money is paid, and when he is bound to convey. In the meantime he is not bound to convey; there are many uncertain events to happen before it will be known whether he will ever have to convey, and he retains for certain purposes his old dominion over the estate.”