link to archived version the article, for anyone else interested.

tl;dr these people wrote up a shitty "family" contract and are now realizing there maybe should have been clauses around what happens if the property value changes before the title/deed is signed over.

as a credit to the author, part of his response included counter-asking the couple if they would feel obligated to pay their daughter an extra $100k had the home's value increased before the deed was signed over.

oh, also, this appears to have been one of several rental properties the daughter owned, but she spread herself too thin to afford this one, so nobody in this scenario is really the "good guy".