From my own experience I can tell you, those investments are better suited to local owners. 

@Kathy Kifer that's nice when you get someone for a while and even better if you like them as a tenant! 

Compare my plumber to another "hot shot" developer I know who ended up over extending himself and filed bankruptcy, maybe the plumbers are doing better than that fast growing developer...  

Or would I be better off keeping it since it’s cash flowing (been this way since day one of renting it 4 years ago), saving some more of my own cash again, and just investing that instead into a short term rental property?

I recommend you never sell a property unless you have a firm plan to invest the money in something that produces a better return or moves you closer to your goals.

Ok your responses are from lenders that want to make money lending HM.HM is basically not appropriate for any kind of longer term hold  ONLY fix and flip and only if you really know what your doing.I would be very cautious borrowing money..better set up for you and safety is going to be a JV deal.. where the PL is your equity partner and is in it long term with you if its rentals you want to start to acquire.

My rate has jumped from 4% to 10% so it's hard to find something better than 10% to make it worth it.

Then you can consider researching and finding something that meets your needs better.

This is actually better than many parts of town, but that's partially due to the quality of the assets there. 

For your specific situation I’d wait until you get $200k+ saved up and buy better asset classes…even if you have to wait 5 years.