Probably not. The landlord can argue about what is the reasonable time frame of snow removal and it will differ from yours. If you try to seek legal help on this matter, someone along the line will ask you, "Why didn't you walk to a bus stop?" It'll be turned back on you so communicate with your employer what the situation is and say you're going to talk to your landlord and work something out so you won't miss work. Try to be firm AND kind when you talk to your landlord, you don't want on their bad side, even if you are in the right, because why take the risk of pissing him off when he controls where you hang your hat. Catch my drift? Let them know that this issue must stop and come to an agreement that works best for you both, no need for it to get ugly. Catch flies w/ sugar, it's better than vinegar. Good luck, dear.