Jonathan, seller finance is a beautiful way to finance a deal. If the seller is willing to seller finance I would begin to reach out and build a relationship with them. This will ensure trust and possibly even better terms. Tell the seller your WHY and future goals for investing in real estate, chances are they would love to offer you advice. As far as the deal goes you want to make sure 85%-100% of the property is paid off. You do not want to carry over their existing mortgage payments. Once that is finalized you can then discuss a down payment and interest rate. You'll need to show them proof of funds. Ask the seller about a ballon payment, because you may want to do a cash refi in the future. The cash refi is how you're going to own the entire property. Wait for the rates to come down. Other than that the asking price seems attractive enough to cash flow from the rent. All in all make sure that your monthly rent from tenants will cover the sellers finance agreement. Good luck!