What are some ideas to make a couple extra grand a month while still working full time and gaining valuable exposure to the process AND providing value to existing investors?

How many LLCs:  depend on wealth and asset type exposure.  

FSBO will not get the exposure an agent can offer.

Conventional closings are a PITA, and I can only imagine it's a nice way to get out of it.Beyond that, it's all about personal preference and risk exposure.

Of course, one must legitimately be self-employed with no full time employees to implement the 401(k) plan.There are workarounds for California investors in an IRA format that provide checkbook control and eliminate the use of a LLC and exposure to the California Franchise Tax Board.

Exposure of these crooks is the only way that others will not be victims!

I am happy to delve into it further with you if you choose, but if you talk to someone else, just make sure they walk you through the variables with staying with a personal policy vs transferring to a commercial policy...etc@Sydney Hall to answer a few of your questions...1st you can have an umbrella even if you don't own a home--most of your personal liability comes from auto exposure--you are much more likely to have a hefty liability claim from a car accident than someone getting injured at your home.2nd based on the limited info provided, you should have a Business Owner's Policy as a business owner--property and liability coverage (especially if you have a physical office location).  

The bank will question where the money came from, and we will have exposure to gift tax/exclusion reporting.

You can possibly limit his exposure to this tax - but not eliminate it - with some fancy tax planning.

If not you are just wasting both parties time and not helping anything.There is a reason something isn't selling ( price,location,condition, commission,marketing exposure,etc.)