You have to test for it, then if present handle the demo of that item as hazardous material.Good:  ask for the insurance report. 

Remove trim first, the demo the wall.

And from an early age I knew I would be investing in rental properties so I'd say the education paid off.In middle-high school years I would help out on weekends with demo, sheetrock, painting, tiling, cleaning - no compensation.

Don't underestimate the cost of demo and removal, easily a six figure job.  

When we were doing demo, we found a toddler's  shoe in the attic, where the floor boards were not screwed in, in there were huge nails sticking out, scary and your heart just sinks that it's an accident waiting to happen!    

Your deal could be far better (construction started) or even worse if the city comes in and makes you demo non-permitted work.

I realize there are issues with the standards that were implemented in 1976; probably better to demo than move.

You can save money if you demo what's there yourself and do anything else you can, but if you contract everything out you will be more than the 100k especially with having to invest in all new utilities for one of the doublewides. 

Hey Charlie, we just bought an RV park and after doing lots of demos, we are going with Res Nexus.

Also demo of certain walls.