Definition of opponent for English Language Learners. : a person, group, etc., that is against something (such as an action, law, or system) : someone or something that does not want something to exist, be done, etc.
Generally, your first mortgage payment is due on the 1st day of the 2nd month following your closing date. For example, if you close in February, your first mortgage payment will be due on Aproil 1st. Generally speaking of course.
Lots of tenants are absolutely convinced that if rent is due on the 1st, they actually have until the 5th (or sometimes the 7th or even the 10th) of the month to pay, because they are within what they believe to be a legal grace period. Sorry, but this is not true. Rent is legally due on the date specified in.