If you are serious I recommend Costar above all.  

If you don’t know how to estimate repairs, I would recommend using a tool like Blue Hammer.

I would not recommend RESimpli to anyone else.

Limited labor and resources : Unlike the catastrophic fires in Lahaina Hawaii there are significant resources in Los Angeles to contribute to recover, but quality contractors, tradesman, plumbers, electricians and laborers have long been in short supply.

I have some great PM recommendations if you need!

This process makes sense from a plumber that wants to make more money.Putting a cleanout at the lowest point (curb) is not recommended in most cases. 

I also recommend hiring a PM... then they deal with all of this and leave you out of it. 

I would recommend checking with some local insurance brokers in your area, they may know more carriers that are available."

Who are great property managers in Atlanta you would recommend for my circumstance?  

If you're open to $120-180k, I would recommend looking into Columbus Ohio as it does have much better growth and appreciation potential than Cleveland and Dayton.