The lease agreement was signed 2/5/10 for move 3/1/10. On 2/20/10 Tenant now says they do not like the lease agreement and does not want to move in now. Do they have to give written notice since they have not moved in yet, and I lost the opportunity to rent this apartment to someone else. I did receive 1 mo rent and 1/2 security. My state is RI.