The 4-unit is 1/1s, fairly similar footprints. 

In light of this, I have been exploring the possibility of pursuing creative finance options, specifically seller finance deals, as a potential means to achieve my goals.

I’d love to hear about your goals and what you’re hoping to achieve here.

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. 

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

So when I tried to list it, the first unit on Zillow would show as "100 Example St." and then when I tried to list the next unit I had to put in a unit number so I tried to put "101 Example St." but on Zillow that would show as "100 Road St.

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

Each unit is $725.

You can still achieve it, but finding deals that actually pencil out on all criteria (low enough purchase price, low enough renovation cost, cash flows on the backend, all cash out at refinance) is pretty hard.

Seems to be we are on the same page, the unit is 1395sqft and the gas furnace quote was about 10k for us as well.