There were numerous in-law suites, pool houses, granny flats that were built legally prior to the current ADU bills. 

Curious on people’s strategies on what to do with about $30k a year in disposable income to set yourself up to have a nice retirement.Most jobs don’t offer very attractive savings plans or pensions anymore.

Since you live around there, you know what areas are hottest, which ones would attract students as rentals, etc.Good luck!

A not so great neighborhood could still be attractive for a 3 unit multi to rent out, even if section 8!

What rental classes are attractive to you? 

Once I attract tenants what screening process should I put them through in or to find the best possible ones out there?

I've heard numerous ideas or strategies for how to circumvent or not fall within the new law.

It requires little investment (you can spend a lot of time and/or money, or both in marketing) so it attracts people who may be less then honorable.I believe one of the most important things you can do (well, there's always learning, reading, listening, etc.) is to get active in your local real estate investors community. 

Of course I received numerous low ball offers, I did accept the 185k offer with me paying closing costs.

I'm a big advocate for MFR as the economies of scale tend to work more in your favor and the financing is much easier to attract.