As an Airbnb shareholder from IPO I like what they do hiring third world reps to handle issues, but as a PM company owner and STR owner I despise it. 

As the project manager, I learned a tremendous amount throughout the process.

Additionally, for the AR llc, do I need to register the LLC in California as a foreign company?

I also recommend you start looking for a professional property manager, at least until you educate yourself enough to run this solo.

Also, SAAS platforms are supposed to include support and service (that's the last S), but the quality varies greatly from company to company. 

the company I went with was 12k and performed high quality work.

We run into this especially at out parcels in grocery anchored centers, and our users generally can't make a ground lease work for the business case so the next best thing does tend to be the BTS or we often do Reverse BTS deals where the majority of the building design and management etc is done by the tenant. 

There are also online platforms that will handle managing security deposit compliance, refunds, etc. like rentable.com

I would list natural and inexpensive methods of "curing cancer" that of course don't make money for the doctor and pharmaceutical companies, so they are not utilized.

I’m particularly interested in exploring strategies for acquiring and managing multi-family properties, as well as understanding how to leverage technology and data analysis to make informed investment decisions.