She does a lot of research on the houses we look at, communicates with contractors, does mailings and marketing for potential properties, filing and keeping us organized, and other things I can’t think of at the moment.My question comes down to strategy and being able to utilize her as a buyer when she shows no income.

Your Cap Table of investors Stock shares Authorized and issued will be presented for investors to calculate the Valuation if you are not an existing company with at least 1 year of Income history investors prefer CF filings and smaller valuations. but until a minimum of 100 investors and 1 year of audited financials, you can not become a REIT

It really depends on the lender & how often they review their customer's files. 

Also,   The beginning of 2022 you can file a tax appeal. 

I will probably have to wait until March when I file 2021 unfortunately. 

Make sure the information you’ve entered matches exactly with what the IRS has on file, and that the address you entered is a valid US Postal Service address."

There are many statutory deadlines for notices and actions that need to filed, so I highly highly recommend engaging with an attorney, such as @Emmett R.

Quiet title action does not obliterate current liens, it's usually for very old liens where releases are not file, and lienholders cannot be found. 

LLC vesting is costly to register annually and file extra tax returns. 

In the past, we have filed individual taxes with schedule E but with the portfolio growing to be something more serious business rather than hobby house fixing, we are looking into Accountants/Tax Prep.