Tenant Leasing Advice

[Ray Hayward]

Hello, I have a great tenant who would like to have a roommate move in.While the apartment has the proper occupancy requirements to do this, he wants to keep his lease and prefers a tenancy-at-will for the new roommate.This would allow a grace period to make sure this works out for both parties.

The state is MA.Is there a way I can accommodate this kind of request should all the background checks workout?