You can get a ton of recommendations on BP for creating a team but message me if any additional information is needed.

Here we are 12 months later and they have been a great tenant so I intend to follow through with our agreement and create an addendum to their lease.  

You need to network to create that.

Fourplex, triplex or if it’s all you can find or afford a duplex.If you don’t have one create a budget.

How do I balance these two scenarios so I'm getting what I'm worth, but also creating value for my investor taking a risk on a first-time flipper?

I am most interested in working in real estate to build a business, create passive income, and eventually invest to help others build their businesses.

*spare me the "you shouldn't go into business with friends" talk as we have a strong friendship and understanding amongst each other

You need to put that cash to work to create true wealth and create cash flow.

. :)  he had a company called California Wrap even.. and it was those transactions and many other Ca investors like my dad that then created the All inclusive Deed of trust.. to facilitate sub too in a much safer manner.. its a great document folks should google it.. its what we use to transfer title in CA on a wrap or sub too. 

To fully cure the encroachment, you will likely have to file a new legal description for both properties and reset the boundary lines, or create new parcels with the encroached areas.All of this can be dealt with - but it's going to take time & money and most importantly, cooperation between all the parties.