here are a few things to look at before you even go inside:
(worked in the residential home construction industry since `72)
look at the roofline and look for sags. get up close and eye the roof from the edge to the ridge(peak) .you will easily see a sag if there is one,mainly from snow build up thru the years.
i always look at the front door and what kind of shape its in. a severly worn front door may give a clue to the general upkeep. if the people didnt keep the door in good shape(which is the first thing people see,IMO) , what about the rest of the house?
single or double glazed glass windows?? if single pane,they are old and may need replacing.
back to the roof. are the shingles curled on the corners? look at the south side of the house roof.this side of the roof takes the most abuse. also missing shingles,especially around the eves.
make sure to ask what the matieral the siding is made of. it may be an asbostos composite,which may be trouble either working on or replacing,depending on your states asbestos abatement laws.
after entering house, if you feel like you are either walking up or down hill, definate floor structure problems.
look at the little space around the interior doors, its called the reveal. the space should be even all around,especially across the top of the doors. if not,another indication of floor structure problems.
all doors should open and shut without binding or dragging.
ask if the walls are wallboard or lathe and plaster. lathe and plaster wall covering is a real pain to maintain. imo
any cracks in wallboard.
is there old hardwood flooring under any of the carpeting?? if so,you may be in luck. many older houses have carpeting over hd floors and refinishing them is worth the effort.
if carpeting is worn,is there a carpeting allowance??
age of heating/cooling system.
look for obvious cracks in the floor structure in the basement. if a crawl space,and you are interested,definatly seek a reputable home inspector. in michigan,there are no licensing requirements,but in your state,it may differ.
i dont know much about electrical or plumbing,but if any of the wiring is called"knob and tube" its really,really old.
i could sit here and write lots,lots more,but i think thats enough out of me
any questions,feel free to pm or email>
draboo11@hotmail.com