It is really a matter of keeping the hot tub safe and sanitized for the guests.In my market it is standard practice to drain, clean and refill after every guest.  

Now you have lost money on cash-flow and value.For those with Bigger Pockets (see what I did there), playing the speculation game can be safe enough and profitable relative to their overall financial position.

It lets you walk through a property on a mobile device, select areas that need work, and then input the cost and send out the contracts to your contractors.

Average of 15% yearly return might sound wonderful compared to their index fund.Additionally you have international investors who are probably just happy to get their money out of their country into a safe haven of sorts.

Those guys can then view their individual workorder lists from their mobile devices.

So I have this older house, bought as a student rental for my own son and his buddy/roommates, all of whom have lots of electronic devices (computers, laptops, xBoxes, projectors, phone chargers, etc etc).  

Also, for any advertising, always avoid the words "low risk, guaranteed, safe, and secure."

Without knowing your budget, what you consider safe\risk tolerance, how far you are willing to travel, asset type, your level of living expectations, lifestyle, local neighborhood expectations, the tenants\roommates you want to attract, and other criteria, it's hard to recommend an area.Your Class A, B, or C asset type class expectations versus another's view maybe totally different.  

My question is this: How does one find another city to invest in that is somewhat safe?  

@Barry Ruby, you are exactly right that only FEMA isn't keeping there "flood risk" current (likely more people and properties are exposed to risk, however only the smart carry flood insurance. 90 percent of those flooded in both Harvey and Florance didn't have flood coverage because they thought they were safe since they were not required to carry flood insurance by their lender Cost of flood insurance for areas that are not required can be as low as $62.50 a month maybe even lower.