STR management is 20-25% (I would recommend self managing or getting a VA), since income is higher you could probably get away with 5% for maintenance / cap ex but remember you need to cover utilities and cleaning for these units which drives up costs.

Additionally, consider operational costs like cleaning, staffing, and marketing, as they can quickly add up.For management, outsourcing to a professional property manager or leveraging tech platforms for bookings and operations could streamline things, especially if you plan to scale.

What I'm planning: buy and hold the property, brush and clean it up with intent to hold until cost of funds drops a little in 4-6 months.

I did a check on a guy 10 years ago came up clean as a whistle on my landlord association screening service.

Hopefully your one side will vacate properly and clean. 

CA really cleaned up the fractional note business from my days of doing it in the 80s..

I am assuming in this that normal cleaning was done pre-occupancy and they are excessive in their expectations.

Then when the tenants moves out, you can assess if there's any damages or cleaning.

He recommended we do some work to move the outflow from nearby downspouts further away and then clean/reseal the interior wall.

That said there are some nuances and requirements to property implement interest tracing so ensure you talk to your tax professional ahead of time and keep the funds movement as clean as possible.