How much would did cost to expand the septic tank and the associated regulations change to reflect in the county records. 

If you're going to do it alone, make sure you your due diligence: estoppels, inspection, review, consult with a local attorney familiar with the local regulations, etc. and good luck.

Readers should seek professional advice.

I will still sign up for it as it seems to be one of the main sites dedicated to traveling professionals.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

And the locals in Highlands have been fiercely debating STR's and regulations for the last few years, so I wouldn't be comfortable buying there.

These are professionals with additional training and a stricter code of ethics.

Sometimes it's better to pay a bit more, for a real professional to handle your most important transaction. 

My favorite approach is attending networking events since they offer a great mix of agents and professionals. 

I am currently looking to Purchase and Rehab a House in the North Dallas and DFW areas.I am eager to Network with fellow Investors and Professionals in the area to explore Opportunities for Collaboration.