I'm trying to do drywall repair on a ceiling where the joist hangers were poorly installed, with the worst offender hanging 1/4" below the joist it is supposed to hold.
The intention is to place furring strips along the edges of the hole, and screw both the existing and replacement drywall into those strips. Ideally I would also screw the drywall into the ceiling joists.
My problem is that this will push the drywall down where the hangers are. The joists are level, but the joist hangers are not. Did I mention this is my first time doing drywall repair? I thought I could just notch out the top of the drywall where the hangers are, but I've been told that cutting through the drywall paper will compromise the integrity of the gypsum.
Trying to remove and re-anchor the joist hangers would be entirely beyond my expertise, and would require a considerably larger hole than I already have. What other options might I have?