He disconnected his phone, and has even seemed to start another business as he posts on the local Facebook trading post offering to power wash big rigs.

As long as you don't lose more than that, then it is a wash/you are ahead. 

Overall, the project includes 21 bedrooms each with a private bath, plus there will be an additional community bath and a community laundry on each of the three floors. 

Because I was planning on adding a separate entrance to the basement (SDU) my contactor also demo'd the stairs (from the main house to the basements) and in the place of stairs we created a laundry room, because the W/D needed to be added to the main house as well. 

I have been researching ITP and specifically driving the west side (hunter hills, wash lark, Mozley, west view, west end, grove park) to get a feel for what the condition is like and how far is it from developing.

I skip traced her and spoke with her and she's open to talking with me, I have and told her I was interested taking the property/properties off her hands and making it easy and fast as possible so she can wash her hands and move and take care of her sister.

In the bedrooms (which aren't nearly as bad) we are planning on washing everything with TSP and then sealing with BIN or Kilz before we paint, but I was hoping to get opinions from others with experience: any thoughts as to whether we should even try to clean and seal this room, or whether we should go ahead and rip out the drywall and start fresh?

Prior to painting dirty walls/ceilings; use TSP to wash them down. 

If the road was repaired, closer access to the quaint mountain village of Wrightwood would be restored.The road was washed out in 1978 by severe mud and rockslides.

Noise complaints, parking complaints, common areas like laundry rooms and hallways that require cleaning and maintenance, parking lots, etc.