Rodney - I know @Steve Rosenberg well and his answer was spot on.  

It could just a joist issue which isn't an expensive fix or something to worry about.Check the ceiling for brown spots as sign of a current or prior leaking room.Window units in house means there is an HVAC issue no matter the reason given by the owner. 

Is it hard to find a spot because other houses around also do not have driveways or are there spots always available? 

INFO I had noticed overwatering in several spots near my house during 2016 and 2017 so contacted the office, in advance of this problem, just to be a good neighbour.

Unless you have a model which can 100% predict where the next hot spot is going to be (and you might have, in which case we should become best friends), it will remain, at best, a guess - albeit one "backed" by more math than I would understand.  

Wanted to share an attempt from a fake lender that i received yesterday on BP PM.  However same fake lenders troll Facebook and linkdin the first contact is just a simple Hello.. then Once you respond  they come back ...

Networking is an easy-to-access bonus, both inside and outside of Real Estate with a lot of folks that truly just want to help each other grow.From a local level, we are conveniently positioned between the arguably two most important spots (per the Iowa natives): Ames and Iowa City. 

In my opinion this sounds like a substantial investment, and there are plenty of solid multi-family renters in the following markets:DearbornDearborn Heights Melvindale Westland& other cities immediately North, East, or West, of Detroit You're spot on about renters paying less for a duplex over a SFH but as you progress in the multi-family market you'll notice the differences aren't much if you choose the right property, construction finishes/overhead, tenant screening processes. 

Unfortunately he may not really be willing to sell that he just enjoys sticking it to the bank and realtors and doesn't want to give him his hunting spot.  

It will be surprising to you how easy it is to spot a fraud with just these few tips.