I want to throw in that I can't believe the amount of information and the environment I have found here at Bigger Pockets, FOR FREE! 

I personally love rent controlled environments.

This environment is pushing many investors to go for 30 year fixed commercial notes available for 1-20 units (sometimes higher) right now even if it costs a few extra bps today vs. the balloon (myself included).

In my opinion, what makes today a great time to buy is low interest rates and the ability to lock in a 30 yr. fixed rate mortgage in an environment where dollars continue to be devalued...

We are in an unusual environment right now. 

This isn't inclusive but should give you a good start.

It does require that the buyer assumes the loan if it is not paid in full. google  wrap around mortgage  or in CA  All inclusive Deed of trust.. 

You can also look up median rents in any city with census data but I believe that is a inclusive of all housing types, sizes, bedroom/bathrooms, etc. so I wouldn’t use that to analyze a specific deal but not a bad option when analyzing markets. 

However, it doesn't make financial sense to refi in the face of a rising rate environment.

I would quit and take time to reflect on what you want, I wouldn’t go splurge and burn the money but get yourself in a different environment and reflect and enjoy friends/family.