For a moment, who knows or cares what that is doing, think of this discussion in a "flat appreciation" frame of mind independent of what the overall 'housing market' does or doesn't do. 

She let my newly rehabbed flat in a catastrophic state.

It is the 50% renewal afterwards that has me wondering if that is normal or if that should be part of the 8% monthly fee or even a lower flat fee like $200 or so.

Maybe your family member could list the house using a flat-fee-based real estate agency that would minimize her closing costs.

Flat fee for using funds?

For that, we assume we could find a company that would charge a flat fee for the management and charge extra per callout as well as per cleaning.

Got the flat roof done this weekend with Durolast. 

The objective behind this post is to develop a strategy through general discussion in order to take my next deal head on.I am currently deployed overseas and return back to the US in the June-July time frame.I currently have a three flat and a two flat, both of which were house hacks.

If you are raising money to buy 1-4 unit residential properties and paying the person's lending you money a flat interest rate....then there's no filings you have to do. 

Sounds like a good start would be to scrape a flat spot and put out a simple 4' x 4' grid of concrete pavers, and maybe some stepping stones out to the yard.