Should I stay in my home and try to get some roommates to help with mortgage cost until I gain more equity?

Also - could you please point some of the meaningful resources I can use for gaining more insight on the market.

Clarification: did the lender foreclose on the wrong legal description (the same legal description deeded to you)?

Truly self-directed means that your plan does not have any limitations on the investments and you can invest in anything that is legal. 

It was treated a few weeks ago but her current landlord is not renewing her lease due to the pest problem and now the applicant is threatening legal action if we don't rent to her.

Oftentimes in Sheriff's sales the final judgement amount is published whereby you can see how much the bank is owed, including outstanding balance, interest, late fees, legal costs, corporate advances for insurance, taxes, etc. 

I use Free Legal Answers sometimes because all the public advocacy agencies tend to portray statute as heavily slanted toward tenants.

Yes the investments into Qualified Opportunity Funds is from Capital Gains...that is to take advantage of the capital gains tax deferment.

@Thomas S. the protection LLC's offer is legal and demonstrated by courts rulings.

Can they legally do that?