Landlord Breaking Lease and Buying Me Out Before Occupying

[Nolan Madden]

Hi,

I am looking to get some opinions on the situation I am in. I have signed a lease and transferred payment of 1st month's rent and security deposit to the landlord. I have the keys and have begun moving items into the unit, but am not yet occupying it.

The landlord has now informed me that he would like to agree to some sort of buyout of the lease because he is having problems with the local municipality for fire and sprinkler approvals. Instead he would like to end the lease and has decided he wants to sell the property instead.

He has proposed refunding all amounts that I have given him plus an amount for the time and sunk costs that I have already incurred into preparing to move in. 

What do you think would be an acceptable lease buyout in this situation? Should it be based on the lease value or is negotiating something based on my costs incurred plus time and suffering the better route?