I'm California-based where there aren't any real deals in my area, so I'm exploring Detroit as an alternative real estate investment market - due to the combination of it being a strong market and my having connections in the area. 

Combine that with some government austerity and the debt issue improves.

Most of the fix-and-flip investors combine the financing strategies to get past their limitations.

Do you happen to have long term % of gross rent of combined maintenance/repairs/turnover costs/CapEx  ?   

Some charge based on account value, others per transaction, and some use a combination of both.

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Your subject line has STR and then your post references $35k (combined NOI, I'm assuming?).

Hopefully it’s not combined with the landlord hatred.)It sounds more like an attempt to either admit they made a mistake or have to do any work to fix their problem.  

In my experience, using a hybrid model—combining traditional realtor showings with self-guided tours—has proven to be an effective strategy.

All units would be metered so data would be there to bill the tenants (so no ability to question the bill) but landlord would still pay the bill given we can not have 4 main master water meters (can only do 2 x1 master meter + x1 sub meter combinations).