That is kind of the nature of living downstairs in multifamily. 

The home is way out in the woods and I would have never thought that it would be booked, but Its is Rocking!

When rain (or moisture) come, they expand to cover the gaps that are there naturally from installation.

I'm getting more photos tomorrow so we'll see if there's any more progress.Depending on how much you really want to protect your investment.. simply getting pictures on a drive by is not going to cut it.I would suggest you find a construction inspection company like the HML ers use we use and banks use.. normally about 50 to 100 an inspection.. so what you want is at demo phase they go through and check it out quickly and make sure you did not buy a complete wreck with a lot of structural defects that can easily be hidden.then from there once they do electrical and plumbing before they cover those us get it inspected..then have them come back after sheet rock and kitchen bathrooms etc.then once its done hire a normal home inspector to go through the whole house to make sure its up to code and everything is working.. the first inspectors just say yes there is plumbing and electrical the last inspector make sure its all to code your GFI's are in your hot water works etc etc.the other thing you want to do for SURE is get a sewer scope all those old houses unless its evident there is a new waste line the second someone moves in your probably going to find your sewer wont work right and it will be an emergency replacement and cost you 2X to 3X what it would cost if you fix it now..

I do believe it's a duct issue and not the natural heat differences between floors.

Rental activities, by nature, normally do not require significant day-to-day involvement, i.e. they are not time intensive. 2.

--but that's the nature of the game.

You might need to hold it for a while and let natural/forced appreciation come back into play. 

Nervousness after someone accepts your offer is natural.

Talked to a local agent or anything of that nature?