26. The forms whose form is mandatory are(1) the form entitled “Promise to Purchase” in respect of an immovable referred to in section 32 of the Act;
(2) the form entitled “Exclusive Brokerage Contract — Sale of a Chiefly Residential Immovable” in respect of an immovable referred to in section 32 of the Act;
(3) the form entitled “Non-Exclusive Brokerage Contract — Sale of a Chiefly Residential Immovable” in respect of an immovable referred to in section 32 of the Act;
(4) the form entitled “Annex A — Immovable”, which may be used as an annex to the form provided for in paragraph 1;
(5) the form entitled “Annex G — General”, which may be used as an annex to any of the forms provided for in paragraphs 1 to 3;
(6) the form entitled “Counter-Proposal to a Promise to Purchase”, which may be used as an annex to the form provided for in paragraph 1; and
(7) the form entitled “Amendments and Notice of Fulfilment of Conditions”, which may be used as an annex to any of the forms provided for in paragraphs 1 to 3.