an opinion.
when it is better to inspect the house? the ideal time for this is spring, especially if the house has a basement. in this case you will be able to find out whether it will be flooded during snow melting.
check carefully the attic and roof. open all doors and windows. in addition, with regard to the windows, check if there is a moisture inside the glass pack. of course, it is not a terrible problem, but if windows in the house require replacement you will get a perfect reason for bargaining. entering the house, ask the owner or real estate agent to turn electricity, water, heating, all supply systems. 