But as a newbie, I would like to have an experienced person alongside to help me avoid some very costly mistakes as I pursue the acquisition of one or both of these types of properties.   

There are a couple MF syndicators who will take 1031 funds (as a TIC alongside the syndication LLC), but their closing has to line up with your time.

The major hiccups I am having is with city code.

In process of trying to buy my first investment property and running into hiccup after hiccup.

To clarify I have a team of market researchers and skip tracers working on this alongside me.

-Seeking funding (brokers or creative) most likely FHA-Appraising and estimating repair costs alongside professionals to get an idea of the process-Building relationships with contractors, getting estimates on potential projects (also, reading to get a general sense of ARP)-Learning and executing rehabs, by self and delegating to contractors.

I worked alongside professionals as a "helper" With pretty much no construction experience, they put me on the dirty grunt work, cleaning rat poop, removing the old toilets, scrubbing down baseboards, etc. but as I was doing that, I was watching every single thing they did, and pestered them with tons of questions on how to do things and different techniques.

Do you work along side another (experienced) agent in order to learn the ropes from them?

@John Patterson thanks. on rehabs, maybe I've been lucky, but haven't had any hiccups dealing with DeKalb.

They don't have any seasoning terms from our prior conversations, but we hit a few hiccups with our renovation through most of the fall so we're nowhere near close to a refi yet.