I plan on going "Pro" in the near future.

@Armel Bayot hard to say without knowing where it is and what condition it is in, but your ongoing analysis doesn't look too far off you may be a bit light on the property taxes but the rest looks reasonable.

You would have ongoing filing requirements with the State and would need to keep business records and documentation.You also want to look at whether a pass-through entity helps your bottom line and your taxes.

Multiple thousands of dollars and at least a few months, plus ongoing tests and upgrades as the standards change.That 2.9% that Paypal, Square, etc charge, or the time delay that Cozy charges, is cheap in comparison to doing all that. 

I plan on going to my local real investor club to network with other individuals both in my position and with those that are more experienced than myself (so pretty much everyone haha). 

That is based on both at the beginning and ongoing. 

Ongoing monthly cash flow while property appreciates (values heading back toward previous, pre-crash levels) Lessons learned?

You may wish to confirm that the new 401k provider will handle the ongoing compliance support such as any required 5500 filing (e.g. 5500-ez for a one-participant plan with assets in excess of $250,000), any required tax reporting (e.g. 1099-r in the event of a distribution or in-plan Roth conversion), mandatory plan updates and amendments, etc.4.

If you are hell bent on going in without consent, I would consult an attorney.https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?

@Demetrius Ward looks like the ongoing efforts for the national Association of realtors to clarify the American housing economy is working.