If you plan on incorporating a BRRRR strategy to recycle your money and accelerate your acquisitions then I would argue towards paying down your mortgage and getting that heloc.

I could order a copy of the LLCs' incorporation documents, but each copy costs $5. 

YellowLetters.com is a legit source for what you need - and @Michael Quarles also offers a turn-key direct mail marketing program that incorporates his vast knowledge in REI marketing.  

Well, we never got into fiber counts.

I've only been dealing with rehabs but I do want to incorporate wholesaling in the near future and this helps.

You can incorporate your LLC in any state regardless of your residence and where your investment properties are located.Go to the secretary of state's website of where you are purchasing your investments and see what they require (registering your LLC as a foreign entity).

I have incorporated it into my business and it has really increased not only my lead generation "quantity", but also the "quality" of the leads coming in, and in the end thats really what it boils down to, "quality" over "quantity".

I had a foundation engineer walk through and said it would be about $12k to place in several steel I-beams and carbon fiber reinforcement to maintain the integrity of the walls for both of these properties. 

It also insures the materials as they are incorporated into the building as you renovate it.  

The least trivial part of the Certificate is a Fire Marshall inspection and most of the rest is paperwork like business tax receipt, articles of incorporation for your LLC, copy of the lease, etc.