Most MLS platforms have detailed information available.Next, get a certified home inspection.

One (that had had the fire) was close, but the other (converted in the 1990s) was obviously done without permits and inspections.

So heres my short story: In mid Nov. the city came around and did an inspection on one of my properties.

also we generally do a video inspection on each end and save on google photos, unlimited storage there.  

Interview some contractors and after choosing one, schedule a time to walk through the home with a contractor to get a better estimate.Have the home inspected.

We also had 3 business days to conduct a home inspection, and 4 business days to arrange for appropriate financing.We didn't just luck out - we managed the situation and read the clues really well.

Definitely get an inspection which should reveal plenty you might miss, but hopefully not too much.  

The relo had an inspection done and found three major issues.  

We did the inspection, paid for the inspection(  because the seller asked tenants to give access to the inspector, first time one tenant fail to do so, the inspector have to go to that unit on the second trip, cause us $150 more for the inspection), and requested the seller provide lease, which should have information for the deposit tenant paid, the rent, etc.

Of course part of the holding costs is paying the mortgage in the meantime, but that could be offset with any rents that come in.Whatever offer that was made, it would be contingent on an inspection period and approval of my partners (in this case, buyers).Keep in mind that if your seller (or buyer) jumps at the first price you offer, then you made the wrong offer.