Obtain an accurate account of duties, remuneration, intended duration and the real employment arrangement relevant to the case.
Resolve the specific omissions
Ask the employer to confirm its actual proposal. Avoid filling missing terms with assumptions merely because a generic letter template expects them.
Gather the share register or shareholder agreement for every company you hold an interest in, the proposed engagement or offer letter, and any document describing how the two companies relate to each other. A current employer letter reflecting the present role, the current state licence rather than the original issuance, proof of Canadian citizenship, and the degree and transcript. A support letter setting out the profession, duties, period, and location; a written explanation of the clearance condition and its effect on the start date; and confirmation of who to contact about it. Start with whatever takes longest: a credential evaluation if any degree is foreign, then the employer letter revision, then transcripts, then the passport check. Build the file from records that existed before the immigration explanation: the executed offer or engagement, a detailed duty description, compensation terms, educational records, and any required licence. The employer letter should describe the degree accurately rather than calling it a biology degree, because a mismatch between the letter and the diploma is exactly the inconsistency that causes a refusal. A first review produces a document order keyed to the letter: passport, qualifying credential, licensing record if relevant, and ownership disclosure.