Should I submit contracts from both companies for my visa application, or just one?

The user is applying for a visa from Vancouver while working as an independent contractor for two companies: a travel agency and a real estate agency. They are uncertain whether to submit both contracts or just one for their visa application and whether they should request the companies to add a note confirming that working remotely from Thailand is acceptable. A comment suggests that they should obtain a statement from both companies specifically stating that remote work from Thailand is permitted, along with their employment contracts.