The future of the house became uncertain in January, following the death of Ms. Carter Stevenson, one of Fort Worth's most prominent arts patrons, at the age of 89.?"I'm really amazed that the estate let it be sold to someone whose intention was almost certain to tear the house down,"?said Mark Gunderson, a Fort Worth architect and friend of Ms. Stevenson.?"It's inconceivable to me that a new owner would do that."