However, landlords and tenants are generally free to negotiate the terms of their lease as long as it respects the law of the state. The landlord or his agent should check potential tenants with a rental application before choosing his candidate and implementing the lease. After the tenant`s permission, a deposit is usually collected (up to one (1) month`s rent) and the agreement is signed, making it legal. The Massachusetts fourteen (14) day notice is a form given to a tenant who has not paid rent by the due date.. . .