You would want to look for an owner that has a loan through a bank or credit union or one that has no mortgage. 

Two, you'll have a much easier time obtaining a mortgage product if you have a track record of W2 income.In the meantime, continue implementing the strategies you mentioned: save religiously, build your credit, pay any existing debt owed, etc.

This helps support a strong credit profile and a favorable credit score.One downside is the possible impact on your debt-to-income ratio should you seek to replace an auto, major appliance, etc. requiring a new loan just after applying a "chunk" to your mortgage.Deposit accounts, mattresses, extra monthly principal amounts, etc. each have their own unique advantages.

I think they used to go up to like 80-85% CLTV depending on credit score.

If I recall correctly, Rent Redi even gives them the option to pay using a credit card. 

Quote from @Griffin Malcolm: Open an LLC and apply for a small business line of credit from Key Bank.

Use gap funding (credit lines, partners) for the down payment.

Additionally, a CPA can maximize child tax credits, rental property depreciation, and ensure compliance with reporting requirements for their 1099 income.

I would say credit monitoring

Of course credit card is going to be like 3.5% but it does kind of such because it's already hard to get tenants to pay it lol.