You're going to want to find a local attorney to put together or provide the paperwork to make it legally binding if they do. 

In Southern California, multi-family properties offer potential for appreciation along with some cash flow, given the steady population and desirable market, but higher property costs, taxes, and insurance can eat into your profits, and finding a suitable unit in your budget might be competitive.

RESIDENCE Definition & Legal MeaningDefinition & Citations:Living or dwelling in a certain place permanently or for a considerable length of time.

@Jared Schottthe short answer is - if the house is already on the market, it's extremely unlikely that they will accept a seller finance offer. 

It's all about what you have to offer.

The folks at mass save said there is a new program as of 2023 that offers $5000 per unit for knob and tube remediation and said I could take a heat loan of max $10,000 per unit as well for the balance so I am hoping that is true.

Of course they can get a higher sale price if they are willing to take on someone who cannot get a loan, or are offering better terms than current loan options.

It's a bridge that creates opportunities to get creative or to make cash offers on RE.

Is a Zillow lease considered legal in Georgia?

Or just put an offer into it?