Hi BP,I have been on a mission to find a SFH in Los Angeles with a permitted ADU that I could live in, and rent out the house. 

Purchase price: $155,000 Cash invested: $40 Sale price: $179,000Occupancy permit has been secured for the property from the City of Greensburg.

Is not going to permit you to be a property manager .

It’s an illegally converted (vacant) TRIPLEX=>DUPLEX in an RSO rent control area with no certificate of occupancy and likely some parking issues, still in need of some electrical mechanical permitting.

Most municipalities are not going to allow you to have a structure that's not on permitted sewer or septic.  

The permitting can be a nightmare, especially to get power.

Roofing, electrical work in most US towns need a permit and even inspection.

The lead inspector we used let us know the state lowered the requirements for how much is permitted in the home - meaning this is going to get more expensive and the requirements from the city could very well change.  

Also, licensing may be a concern of you're looking for someone to do work that you would require permits pulled for, etc...Consider reputation and trustworthiness on a cheap contractor as well.

This is a total gut and there are plans in place for new construction along with permits.