However, Maltby meddled in politics prematurely. His involvement in the 1807 general election in Huntingdonshire and an 1809 pamphlet criticising what he saw as the nepotism of prime minister William Cavendish-Bentinck, 3rd Duke of Portland saw to it that he found no favour with the Tory establishment who were to hold power until 1830. However, Parr interceded with George Canning and Maltby became preacher at Gray's Inn in 1817 and Lincoln's Inn between 1824 and 1835. Maltby took the opportunity of light clerical duties to tutor private pupils, including: