Congrats on achieving a comfortable financial situation.Condos are actually riskier than single family rentals. 

What have you achieved so far?

Hope you are able to achieve your goal!

Congratulations on your impressive success since 2021—that's quite an achievement to have closed over 100 transactions in such a short time.

-Your current STR seems seasonal, so even without a mortgage, you may not achieve year-round cash flow.

However if I do a BRRRR I can achieve infinite return by extracting all of my investment.

Perhaps an installment sale will also achieve what you want if you can keep their income below a rate thrshold. if they are sensitive to capital gains, then think through options where you can get it stepped up. 

I have no doubt you’ll continue to achieve great success in your investment journey.

But i was able to achieve the elusive infinite return on a majority of my RE and all of my investment RE that I purchased prior to 2020.Infinite return has the benefit that the finances are not the hindrance to scale.  

McKinney and Princeton have been growing a lot and it is a good place to invest, but it is always related to what you are looking to achieve in a rental investment, appreciation or cash flow.At this time that area does not offer a big cash flow and due to the amount of development going on there, rental demand has declined a bit.In any case you have to make an analysis case by case.