If you avoid the "direct vent" models, they even work when the power goes out (or gets shut off in a vacant unit).  

If you are having food a local restaurant/bar/sandwhich shop may be helpful too as they want to get their name out there!

Also, if your STR starts performing better than expected, you can convert the other side to an STR as well and double up.Also, if the government steps in and shuts down STRs (city, county, etc.), you'd be in a much better position to cash flow with a duplex that a single family residence. 

I used to have an SDIRA and shut it down because I found better ways to increase my net worth. 

I'm open to learning more and looking for the all in one stop so I can buy it, learn it and apply it without having to pay a company every month and risk them shutting down my access if I don't pay for the tool.Thanks in advance.

Do they have their lives together, or do they have substance abuse problems, reliable transportation, does their phone get shut off at random because they can't/don't pay their bills, etc. 

Those other parks are either permitted and will continue to be "grandfathered" or they are illegal and at risk of being shut down.  

He left.We then called another company to check it the following day, that tech suggested replacement.He replaced the unit, then couldn’t light it either.Turns out, the former tenants called the gas company and requested gas be SHUT OFF to the home.In other words, the original unit didn’t need replacing.We called the gas company, who confirmed that they only did what the tenants asked, which was to do a shut off, and can schedule a turn on.After checking that the security deposit check wasn’t yet cashed by the former tenants, we canceled the check and immediately sent them a message indicating what took place, the expense and time spent due to their actions, and a request to send the balance of our expenses, which now were more than the deposit balance.Now they hired an attorney and are demanding the balance.In the meantime, the townhome’s association sent us a complaint stating that the patch of grass in front of the home needs repair at the owner’s expense because the tenants’ pet continuously urinated in the same areas, causing damage.

However, you didn't exactly ''shut the idea down''.

Tell them a basic guideline of what will shut down the process.I am trying to weed out the tire kickers. if they make to this point, I set an apt they must call 15 minutes before they leave or I will not show up.