22. A licence holder proposing to acquire a direct or indirect interest in an immovable or enterprise to be sold, leased or exchanged by the holder pursuant to a brokerage contract must terminate the brokerage contract before submitting a transaction proposal. Despite the foregoing, the brokerage contract cannot be terminated with a view to the purchase or lease of the immovable as long as transactions are in progress or the holder is collaborating with another licence holder to complete the transaction on the immovable.