Hey,
Just an update. I talked to a representative from the advocacy group. She gave me more folks to follow up with. I've figured out a stepped approach to this:
1) Bring the issue up at the next building meeting. (Won't actually get anything accomplished, but will address this formality. That's Dad's part).
2) Written request to address this issue to both AT&T customer service and the agency that manages Dad's building.
3) If resolution not arrived at, involve advocacy group and drop a couple letters to our congress people (whomever that may be at the time).

My hope is to become enough of a nusance that AT&T sends a tech out there with a clear message of "fix the damn thing."

Doing well. Up to eating mashed potatos. Had a great time getting Dad's new ATV in the car. Now trying to figure out how to get it out. The thing weighs a ton.