Svinhufvud's career in law followed a regular course: he worked as a lawyer, served at district courts, and served as a deputy judge at the Turku Court of Appeal. In 1892 he was appointed as a member of the Senate's law-drafting committee at the relatively young age of 31. For six years he worked in the committee, initially redrafting taxation laws. As head of his family, Svinhufvud participated as a member of the Estate of Nobles in the Diet of Finland in 1894 and 1899–1906.