They are strictly taxation.If you are setting up a trust, you should get a CPA.Find a bookkeeper for your daily driver, if you find one that focuses on real estate, then during year-end your CPA won't charge you an arm and a leg.

In particular:(1) Should I hire a law firm or collection agency to facilitate the transaction?

One of the easiest ways is checking off market Facebook groups in your target market where a lot of deals are posted daily.

In addition, the capital outlay starts long before any income and the detracting of something from the primary structure even if it is just yard space.As indicated, my original protege made a lot of money (over $500k) on a land transaction associated with a large count ADU development.  

I have several questions - imagine being able to split up property ownership into tiny pieces or having every transaction out there for everyone to see, all secure and tamper-proof.

I'm recommending apartments.com as my top starter pick because it is the only one I've found that is truly free to both the landlord and the tenant with no fees (monthly or transaction fees) !

Otherwise, you should work with a mortgage broker who can shop hundreds of lenders for you to help pick the best lending partner for this transaction! 

They have literally millions of users and transactions to perfect their processes and features. 

Title companies are another great resource. investor friendly title companies work with investors daily.

But there is nothing like real world transactions to learn for real....and to do that you'd need a Broker and you'd take on all of the overhead costs.