As CRA is not in agreement with the decision in TD Securities (which, in any event, involved pre-5th Protocol timeframes). Accordingly:
Treaty benefits [under the Canada-U.S. Treaty as amended by the 5th Protocol] claimed by a fiscally transparent LLC with respect to an amount of income, profit or gain will be permitted only if the amount is considered to be derived, pursuant to Article IV(6), by a person who is a resident of the United States and that person is a "qualifying person" or is entitled, with respect to the amount, to the benefits of the Treaty pursuant to paragraph 3,4 or 6 of Article XXIX-A.