Back in those days asbestos was barely new to the market and was used for many things such as siding, plaster walls, insulation, duct work and even shingles.

The other was huge property insulated, impersonal and slow to react to needs of managers and thus tenants waited. 

I like to look at them as giving you a layer of insulation.

Start researching your area, learn the values, get with a mentor, go to open houses and window shop, find contractors and get into discussions, get an idea of what sheetrock and insulation costs.

That's part of why I love OKC, it's super insulated to recession so when other markets saw 20% drops of their property values, we saw 6%.

I need the following done:- cleanout crawlspace- replace insulation torn up by rodents- install a vapor barrierThank You Kindly

I would add "insulation foam" under the tiles.  

Find out if they will insulate the floor from underneath or inside.  

Market is decent: military gives so economic insulation, there is no appreciation though because incomes stay so low and there is little to no industry.

Bringing heat and insulation in shouldn't be too difficult.Of course, it all depends on the $/ sq ft value of the property.