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.
In your scenario, you would have 3 months which is excellent. Once you find the right one and go under contract, it may take a minimum of 30 days -typically about 45- to close. In your scenario, closing in July seems ideal. Your first mortgage payment would start in September.