As I am a newbie, I try to get involved and control the costs as much as possible. (2) My initial( and possibly naive) plan is to buy a house with $30K in cash, spend another $15k to  $20K on rehab, with the targeting APR value to be 80K or above.

My wife is surging and paying all expense on her salary alone.Keep control of everything you are responsible for.  

When someone goes to appraise a commercial property, they take the NOI (which you can control, but lets assume its constant) and then divide that by the market cap rate to reach a market value.Yes, you can achieve different individual cap rates based on risk profiles of the property, how motivated the buyer/seller is etc, but in general, the market sets the cap rate.  

Not knowing your background and only assuming this may be your first or largest purchase, if the manager is doing a good job consider keeping them on until you get control of this property say 3-6 months or you find someone that specializes in 10+ unit properties.A property manager can be your best friend.

Do not assume anything and stay in control of what you are responsible for.  

2 - Are there any rent control/ stabilization regulations making the eviction impossible, like in NYC?

@Margaret Grigsby I invite you to keep reading more and getting to know more about real estate so you can begin to control your own life and your future.

You are right, because it's CCC the Richmond rent control law does not apply.  

I'm hearing that pest control companies are expensive.

You never know what the future may bring and for that reason you want to keep control of all money intended for children or grand children in your own name.