Having an upcoming trip to ZRH with LX routing YYZ(AC)-YUL-ZRH and with AC already having a wildcat strike today at both YYZ and YUL with what looks like a long period of disruptions ahead I was wondering if someone knew the answers to these 2 questions

1. Does LX use AC for ther ramp and baggage handling and check-in at YUL or an outside contractor like Swissport?

2. Although my first leg of my ticket is with AC YYZ-YUL and I have to do my initial check-in with them I was wondering if on the day of my flight if AC cancels the flights to Montreal due to industrial action if I find my own way to YUL(several other options) will I be able to check in there for my LX flight to ZRH or will they say because I didn't take the first leg that the ticket isn't valid? The ticket is in Z-class so restricted biz but I do need to get to ZRH that day,