As seen in Better Call Saul, Hamlin, Hamlin & McGill, or HHM, is a law firm based in Albuquerque. It was started by Chuck McGill and the father of Howard Hamlin, with Howard himself later being promoted to name partner at the firm. Kim Wexler and Jimmy McGill are former employees of HHM before leaving to start their own law firm.
Hamlin, Hamlin & McGill was founded by Chuck McGill and the father of Howard Hamlin; Chuck mentored Howard as he took his bar exam and joined the firm. Later, Chuck convinced his younger brother Jimmy to move to New Mexico to make a legitimate living while working in HHM’s mail room. It was there that Jimmy met Kim Wexler.
When Jimmy earned a law degree from a shady diploma mill and passed the bar exam (after failing twice), he sought a job at HHM. However, Chuck — alarmed at the idea of his brother, a former con artist, practicing law — used Howard to block Jimmy’s chances of advancement. Jimmy eventually left HHM and began a thankless career as a general solo practitioner, taking on any work he could, including working with the public defender and writing wills.