In a 'No Man's Land' of ATT Fiber Availability

I'm pretty much at my wits end of trying to see how to get fiber availability for a small community of condos/townhomes I live in.

As an HOA member, I've been authorized to reach out to someone on this, and I've tried every avenue I can, both on the personal front and calling the ATT Multifamily sales.

This small community is surrounded by both GPON (1Gb/s) and XG-PON (5Gb/s) service, including sharing an alleyway with multiple buildings and single family homes that have fiber availability (verified both on ATT's search tool, and the FCC Broadband Map). Further, I can physically see the aerial fiber splitters/pulls to those buildings. They run sometimes within ~2 ft of these condos. Despite that, the only service offered here is ancient UVerse 10/50 plans.  I even get junk mailers at my address taunting me with fiber access. There's even an alleyway/right of way with access to the demarc closet that houses the copper lines.

The tech that came out to run a new copper line said that the HOA (read: us) need to reach out to ATT to look into establishing a demarc/access point for the other units or pulling individual lines - but he would not do so personally until it's 'green-lit' in the system. HOW DO WE DO THAT?!

I have an engineering (used to be called 'F Case?) support ticket in - #145920. It seems engineering instantly closes them with 0 comments, work, or investigation done (actual words from a support rep). I've also submitted a query on the ATT Multifamily / Connected Communities sales line - they typically only deal with 50 unit or greater developments, and either new builds or existing fiber run. So that leaves each property owner here only able to contact the generic Fiber sales/support, who again submit tickets that go nowhere because "the HOA has to do it"

I'm at my wits end. Engineering can't be this nebulous god that doesn't exist and the only way to interface with them are tickets that get closed instantly. Can anyone please give some advice? This is a community of ~17 or so people who are asking to give money to ATT. The existing Xfinity and ATT services are truly god-awful. Next thing that may come is an FCC complaint - ATT gets to say they make fiber completely available to this block and zip code (read: get those sweet federal incentive dollars) without actually doing the legwork to connect customers.