I don't have any expertise in PHX but you might find it helpful to connect with some members on the local forums for Arizona: https://www.biggerpockets.com/forums/546-arizona-real-estate-q-a-discussion-forumBest of wishes to you and your bride to be!

HELOC's are typically for owner occupied however there are a few lenders who can offer a LOC on investment properties. not my area of expertise but it is a difficult ask Cash Out Refi maybe the way to go once you have identified a property 

Keep asking questions of the community people will share there experience and expertise.  

Lots of different expertise to roll them all into one project.

Filing the registration forms is not too hard, but preparing a proper operating agreement takes some skill and expertise.

The DST real estate providers (sponsors), who possess the special expertise in managing commercial real estate, perform the functions of overall asset manager and investor relations management.

It will give you a lot more confidence on what to do once you understand the various indicators and influencers in a particular market.I can't comment much on GP, as my expertise is in Edmonton. 

@Brendan NatuzziFor me, I'm looking for capital (limited partnership) or someone with deep experience and expertise in my deals.Other then that, - Take on activities which I don't have resources for at low to no cost.- Find me a deal.

Connecting with someone knowledgeable like you would be an invaluable opportunity for me to expand my understanding of the market and gain some valuable insights.Your expertise and advice are highly respected, and I genuinely appreciate any assistance you can offer.

I would greatly appreciate insights from individuals with expertise in this field.