The rest is wetland (including a man made fish stocked lake!)

Unit B is fine but unit A was the one lived in by the previous owner.About 400SF of space, which included the entrance foyer and the kitchen, requires some "tweaking".The owner has lined the walls from floor to ceiling with dark wood panels with some elaborate trims.To the right, you can see a bar. 

We do not get snow but a lot of the new units in the area are going to higher amenities which includes 1 car garage, granite , etc.

It is very common here for water to be included in rent, so each unit isn't individually metered for water. 

Some landlord don't even include certain appliances such as kitchen appliances and/or washer/dryer for renters. 

Would you provide financing for a downpayment on a seller finance deal including rehab cost?

Get your financing figured out so you can submit an approval loan letter with your offers just make sure they include how long it will take to close and the maximum amount you qualified for.Do not try to do everything yourself.  

I have done this in the past and the tenant seemed to be more responsive to all  my emails when I included the co-signer as well. 

Don't use any automated ways to determine values, that includes Zestimate, Redfin estimate, or any other tool to claim to values in an automated way.

All income (including w-2s) and all debts.