Thanks, on Sept 1 1787 he renounced his claim, records for a judgement exist.
This is what the records say: Dated 9/1/1787 recorded 10/6/1787, the Inferior Court of Common Pleas, the lands of William McClellan be seized for a Judgement to be paid to the estate of Robert Campbell, to James McDermot of Cherry Valley,
Robert Campbell was the son of the people that William originally bought the land from in 1773. I haven't looked for a death for him, so for now I assume he was dead.
Does this mean James McDermot is the brother in law or step brother? And he had somehow claimed the land from the estate?