Average interest rate when buying on contract?

[Johnny Ryffel]

I’m 26 years old and I’m trying to get my feet wet in real estate. I have a guy that’s trying to sell my 4 single family homes and a duplex on contract at 6% interest. I have really good credit and a decent chunk of money saved. I feel like 6% is pretty high and is making it to where I’ll only be cash flowing $5,500 a year. That cash flow is not near enough for me to feel comfortable, especially on a 25 year contract. I feel like this is still a really good opportunity to start out but the numbers just don’t make sense. All of the houses have almost been completely remodeled and he did a fantastic job on them. I feel like if I could get the interest rate down the numbers would work. Thoughts?