The petition needs records establishing the qualifying relationship, evidence that both entities are doing business, proof of the transferee's qualifying year abroad, and a description of the U.S. position with the organisational context around it. A shared brand or a supply arrangement is not a qualifying relationship, whatever the commercial closeness.
A licence agreement is a contract, not a corporate relationship
Companies often assume that a long and exclusive commercial connection amounts to affiliation. Commercial closeness of that kind is not ownership. The relationship the classification recognises runs through ownership and control, so the useful documents are the ones that show who holds the shares: articles, registers, share certificates, purchase agreements and any trust or shareholder arrangements sitting behind them.
Alongside those go proofs of trading — invoices, contracts, tax filings, payroll summaries — for each entity separately. Hypothetical example: a poultry-production group based partly in Sainte-Cécile-de-Milton files its Canadian and American tax returns separately, and the only formal link between the two companies is a licence permitting the American one to use the Canadian brand and its husbandry manuals. That licence, however valuable, creates no ownership.
Unless shares actually change hands or the register shows common control, the L-1A route is not available to this group in its present shape.