Great system. 

I managed remotely using automation integrations with Mailchimp, Zapier and other home automation systems, but the most important thing is to just make sure you have a great cleaners who will be communicative to you if anything looks off. 

I got a security system installed and some lights outside.

Get your systems right, track your numbers, be smart with your money, get educated.

If you ever need advice on anything, I have some great systems in place to make it more hands-off.

and remember you will have to anti-freeze your system for winter months.

Best practice for screening tenants is to come up with a system that is used for every applicant to make sure that each application is treated the same.

I'm not an attorney, but I believe that is a basic premise of US contract law that all States have by virtue of being part of the US legal system. 

You have to consider purchase and installation costs, plus any maintenance over the life-span of the system.

If you are going to tackle any of the systems such as roof, plumbing, electrical, & hvac you MUST MUST MUST get the work permitted.