I have no formal experience in the industry, but became interested in real estate investing after participating in the ACE mentorship program.

Do I have to do anything to formally update the assignments for my notes?

Keep it all formal and be patient.

Then, follow up with formal notice once you have some kind of agreement, to make sure they know you mean it.

Flipping houses and owning a painting business can actually complement each other very well, in terms of cross-selling services, developing connections, and new opportunities among other things.I guess my point is, before leaving an existing venture, make sure you have formally done your diligence via a business model, business plan, marketing strategy, etc.  

He needs to do a formal eviction process and take it to housing court.

My friend's concern, however, is that the landlord may be trying to formalize their relations so that he may eventually evict them, as many of the legacy tenants in this apartment building have been evicted or "pressured" to vacate for frivolous reasons so that the landlord can renovate and convert their units to Airbnb in order to receive a higher return for each unit.

I guess nothing formalized, I've been reading books, watching webinars, and listening to podcasts. 

Turns out a wholesaler already had it under contract for a short sale and were just listing it to fulfil the formality.

I think what would be best is to have a big formal educational meeting, and smaller subgroup meetings to introduce investors with similar interests.