One building was a 1920 house remodeled in 2012 and the second building was newly built by a contractor in 2012/2013.

Likely just light cosmetic, fix ups, bath and kitchen remodel, landscaping. 

With your extensive experience in remodeling and radon mitigation, you'll be a great resource for anyone needing radon testing or mitigation solutions.

Your non-business / RE book choices are very similar as mine - have read pretty much all of them you've listed.My goal right now is to create cash flow and build equity -- maybe buy run-down houses, remodel and sell too.

The first floor has been completely remodeled and is currently leased to great long term tenants.

Below is the backstory, I have a house under contract that I admired the remodel, got an inspection and a lot of things were wrong with that property.

So, suppose you refinance the property after remodeling, and it appraises for a higher value.

We fix and flip houses, wholesale houses, and do residential and commercial remodeling.

Quote from @Davin Manfredi: This is a construction material on the remodel or work done on the home, so I would say it would fall on you.

Example: Bathroom remodel (tub, sink, toilet and floor "laminated" $750).