No commercial contract alone establishes the required immigration permission.
Review the actual placement
Assess supervision, purpose and authorization before performance. Foreign payment or contract continuity does not cure a prohibited offsite arrangement.
Create a timeline beginning with the foreign employment start date and include any breaks, promotions, travel, and entity changes. Do not assume existing permission covers materially different duties or placement conditions. Have the actual change and applicable process assessed before relying on the revised arrangement. The sequence to plan is document gathering, petition preparation and filing, adjudication with or without premium processing, then admission, which for a Canadian citizen follows the approval without a separate visa interview. A customer's delivery deadline is not a basis for beginning work whose immigration footing has not been reconfirmed. A material change in the assignment may affect the immigration analysis and required steps. A company start date or a previous approval for different work does not establish permission for the proposed L-1B role. An offsite client placement must remain controlled by the petitioner and cannot be labour for hire.