The other house I own has wood siding and the trim was installed on top of the siding.

. - how much of this do you know about regardign our neck of the woods?

How much do rehabbers usually have to pay for hard wood per sq ft?

We do use linoleum in bathrooms and laundry areas in several of our rentals - it's a non-petroleum product (gypsum, wood flour, linseed, pine rosin) which is naturally anti-microbial and, if laid and cared for property, will outlast vinyl flooring.

Are yours sight unseen sales?

Also, some of the small multi-family built in 70s and 80s in Iowa have wood foundations and most properties above a duplex are zoned commercial (much higher taxes) so you have to form a Coop or Condo (S Corp) to convert to residential status to drop the taxes.  

I certainly bought a lemon house, brick over wood frame "as is." 

Hey @Reggie Woods welcome, glad to have you on board!

I noticed the wood floors were not straight anymore and were all warped.

You can listen to them here on the sight I believe, but I us my iPhone.