I take it there were unexpected/unplanned repairs needed on the property.   

The unexpected bonus was my personal credit got a boost and I no longer had any long term debt personally.

@Natasha Berness sounds like it is second home, and you are leaving back to Northern California which if it's something that needs to happen that was unexpected you can contact your loan holder and see about talking with them to convert it.

All your cash flow will be eaten up by PMI and you won't have adequate capital for unexpected expenses.

Basically, non of the major components. 

That's the value of the business component of the sale.In larger companies (roughly $10M+) , there is a different method called EBITDA - earnings before interest, taxes, depreciation and amortization.To that SDE value, we add the value of assets (vehicles, machinery, etc) and real estate, if any is to transact. 

I’ve got a rough idea, but I bet there are a lot of little unexpected costs I am not anticipating.

Until you’ve blown up, the lending component of this business is going to be a challenge, and your ability to overcome that challenge is one of the few things that will separate you from the pack of mediocre, stagnant investors.

We would like to have a similar type of product; a low down payment loan with a construction component. 

Expect the unexpected(especially at that price range), keep reserves.