The metro’s unique road system has attracted companies, including Uber, to test new automated car technology, bringing many high-paying jobs to the area.”

Can anyone recommend good companies to root cause  and implement solution to fix this issue?

Mold is being excluded by many companies.

The mortgage would stay under the seller's name.The buyer could then rent out the unit, renovate, etc. to increase cash flow or make more money.But aside from a possible "due on clause" being called by the mortgage company, what's the benefit to the seller?

Many rural water companies are near capacity.

Waivo is an example of such company.

Has another title company been engaged?

The macroeconomics are on fire here - population growth, job growth, and companies moving and developing here.

Also, there is a need in the marketplace for a co-living PM company that doesn't charge too high of rate. 

Ideally the owner would handle everything and would have no need for a property management company with only this single duplex in their portfolio.