The one wrinkle in my situation is that I'm dealing with a commercial condominium, and it looks as is that form is specifically for residential associations.
A common misconception is that a nonprofit organized under a state statute for nonprofits makes it a non profit for federal tax purposes. In order for federal recognition to apply, it is necessary to apply to the government for recognition. Unless an application was approved, you are not automatically a NP and would need to apply. Retroactive is possible but may not be necessary because the taxable income for your organization may be minor.
To complicate things, the IRS requires certain restrictions be included in the original charter in order for the NP status to be given an unless this was done at the outset, the original incorporation needs to be changed to comply with IRS rules.
If you file as a taxable corporation, you may have little or no income to be taxed and the penalties would be minor and likely waived.