They know the market, understand contracts and law, are experts at negotiation, provide a second (objective) set of eyes, and more.

All laws should be upheld in the selling of these properties.

Homeland covers: Stopping financial fraud, illegal trade and the sale of fake goods to protect the U.S. economy, American businesses and your money." 

Drivable to the Bay Area, much lower property taxes (that DON'T reassess on the sale), much friendlier tenant/landlord laws, strong population and job growth, strong appreciation, and also anchored by the tourism and wealth of Lake Tahoe. 

Following the laws has been a "process" to call it nicely.

I also met some great folks out of Portland at the BP Conference in Mexico this month.My father-in-law lives near Ellsworth and owns some short-term rentals there.

That law sounds pretty specific. 

Petrillo RI law is you have to replace with a septic.

These will certainly specify the jurisdiction and venue for any disputes, as well as the governing law.

The best thing you can do to protect yourself is to follow the law and treat people honestly and fairly.