I would buy a few, 2 or 3 perhaps, with your cash and see how you like the business and see how it is working for you. Should you have chosen other areas? Different types of homes? Commercial instead? Answer these kind of questions with a smaller investment. Once your business is established, you will have better luck securing financing for other acquisitions.
Personally, I stick with what I can buy for cash. Conservative, which limits my top side, but safe. I also like knowing a business well before I invest in it.