I would opine that you shouldn't close till Wednesday.
If the disclosure is hand delivered today Wednesday is the earliest closing date. You never count the day of delivery in the # of days and Monday is not a business day.
Today - day zero - Saturday Business day 1, Tuesday Business day 2, Wednesday Business day 3 and you can close on the 3rd business day.
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The opinions expressed are mine and they are not to be taken as legal advice.