We are exploring either adding duct work for central a/c and heat pumps; or doing a mini split ductless system.

This will allow you to invest out of your local area..I have a passive mind and always consider the automated systems but the flaw of that is the lack of face to face interaction with customers..

I live in California (non rent control area) I'm currently a landlord and now I have a month to month with my tenant .

If you renovate then you may need to have the asbestos remediated when you modify the systems using it.

I know that if I want to take this an make it a business, ill have to have systems in place to keep me accountable and on track with everything.

I recently made the switch to a digital book keeping system, so would I be able to send the tax documents over to them?

It also helps if you are prepared before you hire cold callers such as a great list, systems and tools, and budget.

Brandon & Heather Turner's The Book on Managing Rental Properties: A Proven System for Finding, Screening, and Managing Tenants With Fewer Headaches and Maximum Profit would be a great start.

Especially developers, rehabbers, the types that take old dilapidated properties and fix them nice.Also bad tenants (gangs, hoarders, the types that party all day and don't keep neighborhood clean stay FOREVER)  This is why the rent controls don't work.

If you wait around on lawyers judges or the system to throw out these squatters you may lose all your good tenants and have your building destroyed or burned down .