Minn. Stat. § 515A.4-106
(a) Unless delivery of a disclosure statement is not required under section 515A.4-101(b), a declarant shall provide at least one of the purchasers of a unit with a copy of a disclosure statement not later than the date of any purchase agreement. Unless a purchaser is given the disclosure statement more than 15 days prior to execution of a purchase agreement for the unit, the purchaser may, prior to the conveyance, cancel the agreement within 15 days after receiving the disclosure statement.
If the conveyance occurs within 15 days after the date of the execution of the purchase agreement by the purchaser, any purchaser may waive in writing all rights to receive a disclosure statement under this section.