Where do you think you could see some improvements in the process? 

Just like any other business out there, it takes time to build systems and processes that will bring consistency and profitability.

And I second Jake that getting some local stuff is going to be good, because fortunately (or unfortunately) building a good team is probably step #2 in this process.

I understand that the rezoning process can be difficult, but if I (as a real estate agent) happened upon a larger plot of land with dozens of acres, how much sense would it make to find a list of residential developers here in OK as well as surrounding states to market that land to? 

If you have navigated a similar path, what strategies or precautions would you recommend to mitigate financial risks and ensure a smooth refinancing process?

I'm currently writing up a PSA for an heir that hasn't gone through the probate process yet (I am hiring their probate attorney) so who knows how long that will take exactly.

Otherwise I would terminate (this is all dependent if the property is marketed as a duplex) What is the process of converting a single-family RM-1 to a Multifamily RM-1 (Triplex or Quadplex)From my understanding, it's only getting a use registration permit. 

Maybe before starting the process of building a rental portfolio hack your primary loans.

Like any other legitimate way to grow wealth, real estate is a slow process. 

A great book to read/listen to if you are interested in fix n' flips I'd highly recommend, that explains the process of hiring contractors, is The Book on Flipping Houses by J Scott.