Verify of course with the utility companies to make sure they aren't giving you bogus numbers.EFFICIENCY look for ways to "value add" through energy efficiency. 

The "smart home" electronics would often be shared with other remote control items and useful security measures such as turning lights on and off even when your aren't home or seeing who's at your front door.

If it is because your PM is supposed to be doing it and isn't, then you need to tell your PM to get to work because you are losing money and aren't happy.

When a tenant is behind and you know they aren't going to catch up file your eviction as soon as possible.

You could get another FHA loan in theory, but there's some rules to having 2 FHA loans, however there are plenty of other options that allow 5% down that aren't FHA loans. 

If these properties aren't going to appeal to investors, definitely list with an experienced agent in your area to seek out first time buyers. 

From your question I get the sense that you aren’t a fan of Airbnb.

I always wonder if the deal is as good as they’re telling me, why aren’t they buying it… They’re still a real estate agent who is making a commission off your sale… speaking of that, why are they selling real estate if they’re a great investor, some it’s because they love it.

If you are married to your partner (spouse) it’s a little different, but business partnerships can be more challenging - especially when things aren’t going well.  

But if they aren’t there it doesn’t stop it from being sec 8.