No problem so far. A binding lease.
The landlord asked if you could move back your move-in date. You asked for a meeting. The landlord met with you. For reasons you have not explained, you decided that having the meeting would enable you to walk away from the lease. No, merely being asked, "Will you agree to move in later than Nov. 1" is not a basis to escape your lease.Quoting emckee
The most common reason why a landlord will ask a new tenant to delay moving in is because the outgoing tenant wants to delay moving out. The second most common reason is that something needs to be repaired.
We, of course, have no information about why the landlord made the request. However, it appears that you said "No", and he said, "Okay, then you can still move in on November 1," fully complying with his duties under the lease. Did you leave out some relevant facts that might help us understand your position?
If the new tenant is moving in on Dec. 1, and your deposit is one month's rent, then that would explain the part about the deposit. If the landlord made a reasonable effort to find a new tenant and could only find one at a lesser rate of rent, then covering the difference between what you agreed to pay and what the new tenant is paying would be part of his standard contract damages.Quoting emckee

