Palmer’s father served as a portreeve of Dunheved in 1398-9 and as mayor in 1409 and 1420,
In 1430 Palmer brought an action for debt against one Nicholas Treguddick of South Petherwin and, following his opponent’s outlawry in consequence of the suit, he stood surety at the Exchequer for the lessee of the confiscated property, John Fortescue (the future chief justice). Later, in 1433, he made some attempt to heal the breach with Treguddick by exonerating him from payment of annual rents of 9s.6d. for premises in Launceston and also from providing three days’ labour services every autumn; but this arrangement was to be effective only during Treguddick’s lifetime, and after his death his son, Thomas, started proceedings in Chancery against Palmer, alleging that he had conspired to defraud him of his inheritance. It was not until 1449 that Palmer made a formal disclaimer of his title to the disputed property.
Palmer attended the shire elections for Cornwall held at Launceston prior to the Parliaments of 1432, 1447 and 1449 (Nov.). Probably for some time before 1450 he had been serving as a coroner of the shire, and even though, on 26 Oct. that year, the sheriff was instructed to replace him on the ground that he was insufficiently qualified, he was re-elected shortly afterwards. In the course of his second term as coroner, in 1452, he was required to keep in safe custody the cargo of a Spanish ship seized in Plymouth harbour by pirates. When, during the winter of 1453-4, he was dismissed again, he made complaint to the chancellor, Richard Neville, earl of Salisbury: in his petition he claimed to have been a coroner ‘by long tyme’ until the sheriff, Thomas Whalesborough, incorrectly surmising that he was too ill to perform his duties, had replaced him with one of his own friends. Whalesborough denied the allegations, stating that he had held new elections for the coronership simply because he had been instructed to do so by royal writ, and demanded that Palmer pay him damages for the trouble and expense caused him by the suit.
Over the years Palmer himself had never hesitated to perform various services for his friends. For instance, he assisted the widow of a fellow MP, Simon Yurle, to start legal proceedings in Chancery, and he also acted as a feoffee of the property of John Mayhew I.
