A motion asserting any of these defenses must be made before pleading if a responsive pleading is allowed. If a pleading sets out a claim for relief that does not require a responsive pleading, an opposing party may assert at trial any defense to that claim. No defense or objection is waived by joining it with one or more other defenses or objections in a responsive pleading or in a motion. If a court grants a motion made under subsection (3), any other defenses presented must be decided by the court in the proper venue, and not by the court in which the action is commenced.
M.R. Civ. P. 12