"in contract to" is a correct and usable phrase in written English.
It is used to contrast two different things. For example, "The apples are sweet, in contrast to the oranges which are sour."
(That apartment is currently in contract to be sold).
He was already in contract to sell the old place, and his offer was all cash.
They are currently in contract to sell the apartment they have and buy the one upstairs.
An Asics spokeswoman in Tokyo confirmed the factory was in contract to make Asics running shoes.
We are in contract to acquire the site — it's around 70,000 square feet of land.
Mr. Gonzalez said he was in contract to buy an apartment but had not closed.
He is now in contract to buy a studio that he says should rent for about $2,750 a month.
He and his wife, Katherine, 33, both project managers for Wall Street companies, are in contract to buy one.
Mr. Camarda is in contract to buy two last pieces, the farm and an abutting Mobil station.
The luxury brand, created in partnership with the boutique hotelier Ian Schrager, is also in contract to manage Editions in Los Angeles and Gurgaon, India.
Her house has been fixed up and is in contract to be sold, and she is living in a relative's empty apartment while she makes up her mind.
