Once judgment is granted can i just throw all his stuff in the trash or do i have to keep it for awhile? 

You can have "good" residents and market rent...no need to settle for one or the other. 

Looking forward to hearing your thoughts so I can understand what is the favorite route in this area!

We're doing buy & hold for the cash flow so that I can leave my day job and play monopoly full-time. 

You can check out Apartment Association of Greater Los Angeles.

Open to most types of RE including land/SFH/MF/Commercial RE as long as its mostly passive, and can meet most investment minimums/accredited investor.

I would say your best bets is a gym as a tenant amenity or a community room that tenants can rent for family functions, parties, etc. 

Is it some kind of foundation specialist to start with to at least know what it is and know if there is anything reasonable that can be done, a general contractor, or is this something I just write off as seasonal shifting of the foundation that happens with some? 

Tennessee can be a good one, even though they are also no state income tax.

There has to be an account in the middle for repairs, renovations, etc. and you want to know how that will be disbursed and if you need a workflow between you.If you decide to do it, just start small with an asset that is as close to can't lose as possible so you can fine-tune your collective process.