With HML at least you in theory can vet the property and keep a low LTV to ensure you can be made whole.

Another option could be a home equity line of credit (HELOC) if you have enough equity in your primary or second home.

That's not the same as paying cash.According to a different post, your credit card debt costs you $600/month.

Often times, their approval processes are slow.Credit Unions - Their member structure also subsidizes their financial structure so they can also be a source of low-cost financing.

Mostly from a home equity line of credit.

When they complete this you'll receive their credit report, and a background check.From there you'll have good insight to their 'level of fiteness' for your property.Shahin

If you are going to be an owner-occupant, want a low down payment, and are planning to do a renovation, the FHA 203k and Fannie May Homestyle loans are your best optionsHow do you know the property is currently upside down on the mortgage? 

if it's low and you sell, that rate is gone forever. 

Take out an equity line of credit on the property that can be sides as the down payment for the primary residence.

You may need to pay points if you put less than 20% down, but lots of no point options once you get to 20% down as long as you have decent credit scores.