I had no way to determine the age of the roof, other than looking in the attic and seeing what appeared to be newer felt paper and bright shiny nails poking through.

@Patti RobertsonPatti hit nail on head.

The installer will try to get as close to the wall tongue nailing as possible before they top nail. way too easy to hit the wall.

I will try to nail that down soon. 

@James Yoo - @Steve Jones hit the nail on the head.

I'd also want to nail down what capital expenses are due or are coming up.

Ed nailed it!

Funny, the more of these we do, the more tools, experience, processes and contacts we nail down, making it better and easier to do it again. 

when it comes to buying rental houses in the quote un quote cash flow markets.. these markets are pretty much all interchangeable.. rent rates pretty consistent  with about a 1400 to 1500 cap.. higher than that and most will buy.I think for quick math for out of state folks so they don't get lured into properties that are ONLY appropriate for local tough as nails landlords.. you simply need to look at the median price of the area.. then buy within 10 to 20% of that.. and also only buy were the rent commanded is within 20 to 25% of the top rents in the area.. 

Hardwoods are usually nailed to a subfloor.