In the season three finale, Loretta (Meryl Streep), Oliver and Mabel considered moving to Los Angeles.

The photo above shows lead actors Selena Gomez, Steve Martin and Martin Short on set in Los Angeles.
Only Murders in the Building follows three strangers (Martin, Short and Gomez) who share an obsession with true crime and suddenly become embroiled in it. When a gruesome death occurs in their exclusive Upper West Side apartment building, the trio suspect murder and use their intimate knowledge of true crime to uncover the truth.
Only Murders in the Building, Hulu's most-watched original comedy series, is produced by 20th Television and is created and written by Martin and John Hoffman, who also executive produce along with Short, Gomez, Dan Fogelman and Jess Rosenthal.