Or should I be placing a more formal request for information?

A couple days later, she filed a formal complaint of "violations" on our HOA website.I just think that this lady is going to give us some major problems moving forward, especially when we rent out the unit.

property tax's are highest in Multnomah county.. sometimes finding something that is on the border but actaully in CLACK  or WA county can save you year in and year out..

You asked for an update.The Lender formally “closed” Escrow and mailed me supportive hard copy documentation.

I have applied the late fee and given her formal notices but she just keeps saying "I'll take the late fee, I can't pay it right now, I'm applying for assistance which I should have soon." 

By the verbiage used in your post it sounded like this is what you received; however, I realize that the precise meanings of different terms can vary between parties if they do not know the formalities.

No formal stats...and nothing newer than 30 years old...the difference between 30 years and 100 years old hasn't been significant.We've done several roofs and replaced lots of air conditioners.  

In the city itself you should keep comps within .25 miles but exclude properties that cross significant borders such as Broad St, Market St etc.

Does this give her reason to stay in my home until formally evicted?

If you are unsure about the investor paying you then yes write up some type of formal agreement.