Tenants took 6 days to sign lease leaving us in limbo

[Patty Osborne]

Hello, I’ve been leasing our home in Autumn Ridge on short term. We invited a prospective tenant to move in after app amd background checked well and sent a lease to sign online. They told me that they  would likely sign Thursday ( 6 days ago) when they received company assignment. That didn’t happen and not hearing from them or no deposit, we put house back on market. Last night, 6 days later , they signed and wanting to move in June7. We have not signed and not getting a good vibe even if income and such checks well. Are we legally responsible in any way If we tell them that we’ve moved on anf Deciding on longer termed leases? Thanks in advance😎