If you install a code based lock you won't have a way to connect to it over the Internet.

the only other bill we pay is for internet.  2 bills per month :)

Definitely talk to your coa before taking the advice of “some guy on the internet”.

They're paying a premium for the space, we said cable or internet was provided and so it should be available to them before they move in.

The bill would require a public utility to publicly report on its internet website the amount of any charge issued each year pursuant the above-described provision by the housing unit’s address.

I would recommend you checkout this thread on Pinpoint Profits & Connected Investors for your reference:https://www.biggerpockets.com/forums/79/topics/414833-connected-investors-largest-rei-scam-on-the-internet?

The main guy that pitches this stuff on here and all over the internet is from your State and even lost an AZ professional license.

Don't forget with a MTR you're paying all utilities including internet and yard care/snow removal, where with a LTR the tenant is paying all that. 

Internet was to flip, but wondering if it’s even possible for us to refinance and rent it now.

There has been good comments posted here but I don't recommend seeking legal advice (especially in WA) on internet forums.