Both banks and credit unions are good starting points, as they can offer different types of financing solutions that might suit your down payment goal of 15-20%, but the chances of getting 15-20% are limited as 25% is more likely to open more doors for you. 

If you have huge deposits from your business this can be a solution for you. 

I highly recommend you checking out Guesty in the meantime as it sounds like your main issue is scheduling cleaners, when really, there's an easy solution for that.Book Rec: "ClockWork - Design Your Business to Run Itself" - by Mike MichalowiczSide note - Matt I'm jealous of you being in Kihei, I was there a few months this past Spring, beautiful place.

They kept you updated with the happenings and where proactive with trying to find the best possible solution.

I believe creative financing, specifically subject-to, could be the solution.

Request clarification on why your request was denied and inquire if there are any alternative options or solutions available.

In the end you just need to know what you are trying to accomplish first THEN find the solutions for it.

I think your best and maybe only solution is to put in a french drain across the yard with a large catch basin at the low point.

People find creative new solutions.

Although this is probably less likely than the water leaking in through the window wells, it is possible, and you'll want to eliminate it as a cause of the flooding before deciding on how to fix the issue, because if it's groundwater, then the solution to the problem may be completely different than if it's water coming from other sources.As you consider these questions, keep in mind that water follows the path of least resistance--for example, water will flow through a gravel-filled trench much quicker than through solid earth/clay.