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.
After closing, your first mortgage payment comes due one full month after the last day of the month in which your mortgage closed. Using the April example again, if you close April 15 or April 29, your first mortgage payment is due on June 1.