It did have issues with weak signal and tenants complained about it more than anything else. 

No signals whatsoever?

By disrespecting your reasonable request as property owner and ethical business operator, the signal to him, which must be communicated through your associates, is that you are too busy to consider his "shirt form" attitude. 

i'm finding it hard to keep abreast of the most recent interpretation of the ongoing CO and smoke alarm rules as applicable to all units in CA, whether owner occupied, multifamily, mixed used, commercial, etc.my area is Los Angeles county mostly, and mostly signal hill and long beach cities.i've heard a new set of rules applies July 2015. what's that about?

Signals clash and separate accounts might require a lot of wiring.

This is one of the first signals the real estate prices are preparing to drop. 

@Greg DowneyYour first few deals will seem the hardest as the learning curve for both real estate in general and your local market are like the long walk from Water Street to Signal Hill - uphill and fairly steep in places.What we have found works best is to select the types of properties (SFRs, 2-4 unit residential, small multi-units (6-20), mid-large multi-family or commercial (office, industrial, etc) and the neighbourhoods in which you are interested and then visit (I go for a run) and make note of candidate properties.  

@Quentin MitchellWe tend to only raise the rent when we have signaled to them the raise was coming a year out.

Most tenants are easy to deal with and that is because I did pay attention to the signals and did reject the troublesome ones.

Focus on the signal - get a good working relationship going with the inspector, fix the items on the list, and get passed the inspection phase.