To all those saying the CO can’t be split between companies clearly know nothing about De regulation, Co location COs unbundled products!
For the better part of two decades we’ve had CLEC Switches in our central offices selling their services over our copper. Lyman can easily sell the residential fiber off to AT&T or any else for that matter, the company and the Union can also transfer employment of the EPTs to AT&T as lumen would no longer need them, then AT&T can hold a Recruiting event, eventually offering jobs the Network technicians with the splicing skills they want! So at that point if a network technician wants to go with the residential fiber they will have to self terminate from lumen and start at AT&T as a new hire until they get their time bridged, under the rules of the contract!
As to split crew room I’m pretty sure AT&T can find some available commercial space to rent just for its self!