Peter may have been descended from Stephen Hayme, j.c.p., who in the reign of Edward I had held the manors of Landeke in St. Kea and Restronguet, not far from Truro.
An attorney by profession, in 1403 Hayme appeared as such in the central courts in a suit for detinue regarding a muniment chest. Two years later he stood bail for two Cornishmen when, indicted for a breach of the peace at Redruth, they were awaiting trial before the justices of gaol delivery at Launceston. In 1410 he pleaded as an attorney in the King’s bench. It is possible that when elected to the first Parliament of 1416, he availed himself of the visit to Westminster to expand his legal practice in that and the other courts. In 1418 he was asked to arrange the formal transfer to John Trereise of land in Tregoose and near his own property at Truthall.
