> The landlord should have taken care of it the whole next day.

Ok, but they clearly didn't do that.

> Most tenants don't have extension ladders to climb up the roof to seal entrances, or traps.

Yes, but if they owned the home they'd be more likely to have those things since it's their responsibility to maintain it.

> You can cut the ceiling out and then what? Beat the shit out of raccoon with a swiffer?

Not sure but considering the going solution is "wait for the landlord" and "let the animal die of starvation and then rot in the ceiling" your suggestions seem more likely to actually solve the problem (though maybe without the animal abuse)