My question involves landlord-tenant law in the State of: Massachusetts (Boston)
As a landlord, I prefer no subletting of any kind in my units. In their leases, I require that the tenants initial the section that subletting is not allowed. I also do not want my units used for AirB&B type rentals, including couchsurfing, room letting or any type of rental that involves the tenant receiving money from paying guests who have not be vetted. My units are in well-established family neighborhoods where everyone really knows one another. I am also not comfortable with the potential liability this might present. In Mass., for example, under my insurance policy a tenant cannot operate a daycare in the unit. The policy right now says nothing about the paying guest situation, but I wanted to see if I could head this off by including language in the lease.
Is this something I can legally add without having it become a problem with a tenant who feels they have the right to make extra income from paying guests? Thanks.

