Seven partners at Mendes & Mount have departed to launch a boutique after at least one of the partners failed to persuade the firm to amend its mandatory retirement policy.

The new firm, Fitzpatrick & Hunt, Tucker, Collier, Pagano, Aubert, consists of the bulk of Mendes & Mounts’ aviation practice and will have offices in New York and Los Angeles, said partner Ralph V. Pagano. The firm will be made up of 24 lawyers from Mendes & Mount, including the partners, one of whom joins as special counsel. Mendes & Mount will be left with about 109 lawyers.