Likely the cheapest option is to use a HELOC and with the new rent pay off that equity. 

I am the type of person that is normally looking to save a money to increase my investing so the thought of paying someone to do my taxes when we could do them ourselves didn't make sense. 

Now, you need to figure out how to find deals and pay for them.

Quote from @Jeffrey Duck: I see no reason to pay an attorney for this, but it's your dime.The current lease was between you and Person B.

I use all the rental cash flow to pay these loans off asap, then repeat.

I asked if there was anything else we could try, he got very angry and demanded I pay him in full.

I suspect the stock market and or building then selling a bizzness created a big majority of millionare wealth and or just high paying jobs and save your money :)

Imagine making millions of dollars over the course of your career and then having to pay 30-50% every year to uncle sam instead of compounding that cash over time.This is exactly what real estate professionals have learned to mitigate.To reduce their taxable income, they just buy a building every year, do a cost seg, and use depreciation to reduce their tax liability dramatically.Their personal wealth snowball grows much larger and much faster than their W2 counterparts who give most of their money back to the government each year.Following this strategy as a real estate professional is one of best ways to end up with a much larger net worth at the end of your career.

You might not cash flow right away, but even just offsetting what you were paying in rent while building equity, getting tax benefits, and learning how to be a landlord is a game changer.

The reason is because the companies that back these assets, and some others, have a 1:1 between their tokens and the USD (I'm unfamiliar if EURS, THKD, and stables of other fiat offer 1:1).A possible scenario would be that you offer the seller to pay in a stable coin, like mentioned above.