Prepare the factual position description, pay and intended period, plus the qualification and identity records being relied on. Resolve material differences between the offer and support letter.
Let the issuer verify its own facts
The applicant can supply credential records, while the employer verifies the actual work arrangement. If an agency and client describe different responsibilities, ask them to explain the discrepancy. Preserve dated versions and identify which is current. A polished letter cannot replace an unconfirmed position or an unsupported credential claim.
An employer letter that describes professional planning duties, a baccalaureate or licenciatura degree with a reliable evaluation if it was issued outside Canada, Mexico or the United States, and proof of Canadian citizenship. A single description covering both phases, showing they are one professional assignment: the field program and its purpose, the interpretation and modelling that follow, the reports produced, the expected duration, and who within the employer directs and receives the work. A credential evaluation from a recognised service states what the foreign qualification is equivalent to in United States terms, and a certified translation renders the parchment and transcript in full, with the translator's attestation of competence and completeness attached.