For example for my sister in law we charge a 10 percent monthly fee for a 4plex, no leaseup fees even though the renter gets charged a 200 admin fee so we are making 360 a month.

They like to say their rates are better than hard money but by the time they are done with all their fees it’s about the same.

I evicted a tenant and i want to collect past due rent, evicting fee plus water/sewer bill, i went online and people say you have to go to the county office and apply at the small claims, i need some input, thanks

Their rates are a bit better than hard money, they often offer a bit longer term, maybe 12 months with the option to extend later for an additional fee in-case you don't finish as planned.

Don't just check the fees!

(interior at hot water heater)$55 + 57 for the meter(S) and 900 for the 3g data logger, which is 20-30 per months for 3g service. 150 setup fee for customer billing management and a kick back from the tenant of 5-10 for convenience fees.

Anyone have any suggestions, success, or know of someone that does this for a fee? 

In my jurisdiction a wrongfully withheld deposit is double the amount wrongfully withheld plus attorney fees. 

Should I average a flat fee and add that to the rent advertising (utilities included) or should I charge a flat fee additional to the rent?

Are you looking for PM fees or attorney fees?