Otherwise check out construction financing with a local lender or credit union. 

Credit unions as well.

I'm being quoted a 7.75% cash out refi rate at Houston Federal Credit Union right now.

I use brewery credit union.

Preferably go to the Credit Union in your city and ask for a Heloc .

I'd reach out to someone in a local REIA where the property is located- those folks will know of some private individuals that are looking to lend. if the SFH is your primary residence, you should be able to get a HELOC at a decent rate from a regional or credit union.

My credit union does 95%LTV with no closing costs and desktop appraisals.

Here's an overview of some common types:Traditional Commercial Mortgages: These are conventional loans offered by banks, credit unions, and other financial institutions to finance the purchase or refinance of commercial properties.

Meanwhile, another local credit union starts to buy the market, but it's not like you'd know it since there are no TV commercials for mobile home park mortgages. 

If you need additional capital outside what a traditional bank or credit union would give you on the debt side, maybe start exploring higher leverage private credit / hard money options.