@Mike9241 wrote:
maybe the parents could provide documents to the taxpayer. things happen and documents get lost.
Paid invoices from contractors should suffice (hopefully, they retained them).
As a side note, it seems extremely unlikely that the parents would use the entire amount of the sales price they received to "fix up the house" (assuming this was not some sort of bargain/gift sale). Therefore, unless @jeshas posts some additional, clarifying information, no one can do any more than make an educated guess on the particulars of this matter.
