Refinancing with a focus on DSCR is a smart move when the timing and circumstances align.

You want it to be easy for your tenants to use to avoid non-payment or technological issues on their end, too.

I’ve been reading extensively on strategies to minimize tenant vacancies through smart investments, and I’ve come to realize that many other factors play a crucial role when managing rental properties.

I will add, with technology, it is quite easy for overseas investors to invest practically anywhere in the US.

In your case looking to larger assets where you can effeciently cost segregate to gather bonus depreciation would be a smart move.Appreciation - Where in the country is the asset class you like growing or going to be growingAmortization of the loan - What sector or even region if you look locally for funding, is going to offer the most favorable lending so that less goes to interest expense and more to pay down of principle.Have fun with a spread sheet comparing these 4 returns from your investment with the type and location of assets you find attractive. 

I'm an IT Consulting guy by day & RE investor by night so getting into the details of all of the technology offerings, how they integrate, which capabilities overlap/don't, where integrated value sits, etc. exposes my nerdiness/love for this kind of stuff.

Smart guy with the most practical advice, some great books, and he started in California.

I live in a rural market and this type of issue with technology may not be as big a factor in urban areas.

Is that possible or smart to do so? 

Several doctors and lawyers and other smart people literally crying on the phone to me as they realized their whole retirement plan was done and they need to work into their 70’s if they wanted to retire.