The actual ownership and control need review; the label alone does not decide the case. Sole or controlling ownership of the US entity receiving the services is outside permitted TN activity. Disclose the full arrangement rather than assuming either that any equity is prohibited or that a salary makes control irrelevant.
Read rights beyond the headline percentage
Identify voting arrangements, options and effective conditions in the real documents. Explain what the applicant currently holds and what might vest later. The role must also meet the listed profession and qualification requirements; resolving ownership does not establish those separate facts.
Start by matching a written duties schedule to the exact professional entry and then test the named qualification independently. The first review should identify the employer that hires, pays, assigns, and may end the engagement. Compare the offer, any service agreement, and the ownership documents before choosing an entry date. A title, salary, or small stated stake cannot resolve a contradiction about control. If a licence is required for the profession or the intended practice, obtain the record that proves it is current.
Hypothetical example: a prosthetist is offered a clinical role by a rehabilitation supplier and receives non-voting profit units. The decision turns on the credential rule, the supervising employer, and the unit agreement, not on the word profit in the offer.