I know that interest on the acquisition loan can be included in the cost basis since it’s inventory.

Those loans take  about 45 days to put together.  

It's now converted into a cash-flow positive long-term rental.

I've helped people with SBA loans to purchase real estate for a business, but for buying rental real estate, the DSCR loan is a much better option.

I think that strategy works best in higher areas or mid term rentals near major employers.  

Purchase price: $178,000 Cash invested: $10,000 primary home own use has an Airbnb/ short term rental 5 months out the year/sometime this year will try BRRRR

would get estimates and see how long to recover the money and your long term plan for the property

I got a PA for 300k/FHA loan. 720+ credit score, 75k cash, and good income.

Is the loan assumable? 

@Martin Manning To add onto what others have shared, in the most simplistic terms, apartment complex values are based on Net Operating Income, or NOI, and the cap rate.Price = NOI / Cap RateSo, if an apartment complex has an NOI of $100,000 and a market cap rate of 10%, the value is $1,000,000.Listing agents for complexes love to price based on a pro-forma, which is utter nonsense (unless you're in Austin, in which case apartment complexes apparently have floors made of gold).