Well, there are methods for buying and selling houses where you buy the house subject to finance and then sell it on before you actually have to front up with any money. Like anything like that though, it doesn’t always work.
Or buying houses and getting the purchase qualified for low income rental subsidies. You buy the house, govt gives you a grant for the purchase price if you let the govt place low income renters for 12 years. So you buy the house, govt borrows it, then gives it back paid off. The $300 quote is based on a typical “loan origination fee” or something, thats normal in any property purchase and pretty much unavoidable if you’re financing the house.
IIRC the programs I mentioned have restrictions like 1 house per year or something…so you can’t beceome an overnight slum lord applying for 50 grants on 50 rental properties…it still takes a few years. Play the game right and you will have GODLIKE credit in a few years and will be purchasing homes on your own to rent out at full price.