Appellate Practice Attorney serving New York, NY
You've raised a lot of issues. There is no need for an attorney to be present when your father gave or sold his stock to your sibling, however the contract would obviously be invalid if it is forged, if your sibling defrauded your father or used undue influence or duress to get your father to sign it, or if your father was not legally competent when he signed the document. If you believe that any of these situations apply, you can sue to invalidate the contract, but you will have to prove the basis on which you claim the contract is invalid.
Answered on Jan 08th, 2020 at 10:19 AM