This has all happened since Radar died, he was the bestest mouser - he didn't play with them, he grabbed them and instinctively put his paw on their hind quarters and yanked their head upwards with his mouth, breaking their neck and instantly killing them. We occasionally had mice (and quickly dead mice) but never had a mouse problem while he was alive.
(And I do think Radar was a massive difference to pest control in our block, he had mouse detection and capture superpowers and since he died it has all gone to shit)
The issue with getting an exterminator in is that we live in an absolute shithole of mess which isn't helpful but OH views it as bullying/nagging if I try to get him to clear out some of his piles of shit
I don't want to involve the council if possible because time limits will be put on us doing x y and z which may not actually help but they could pin the issue on us (unfairly).