Toronto

I'm rusty but I believe the reason for the eviction dictates how soon it can legally happen. Eviction without just cause (e.g., renoviction, landlord's family moving in) is two months, starting the next 1st of the month (or week - whatever amount of time a rent installment covers). Tenant destroying the apartment is two weeks or less.

It sounds like your landlord is pulling some BS, and wouldn't have a much of a legal leg to stand on. But it also sounds like this place makes sense for you right now and you want to make it work.

My advice would be to try to come off as sympathetic, and a good tenant, and casually ask if you can defer payment:
Hi x, I'm enjoying this place, thank you so much.
May I get the $50 for y to you on [date]?
If necessary: I understand, but I'm stretched a little thin after first and last but can easily get it to you on [date].
If necessary: offer interest for deferred payment

I hope you can setup a good recovery environment and heal well after your surgery.

Good luck, friend!