No. The role and applicant must meet TN requirements, and applicable health-care certification and practice requirements must also be addressed. An offer is important evidence, not completion of every requirement.
Check the role and the credentials separately
Describe the actual nursing duties and identify the qualification being relied on. Provide citizenship evidence rather than assuming Canadian residence is sufficient. Ask which certification and licensing matters remain open so the employer's enthusiasm does not become a substitute for a completed assessment.
Test the offer against each requirement rather than treating hiring approval as immigration approval. TN is available only to Canadian or Mexican citizens; permanent residence in Canada does not qualify. The proposed work must be a profession listed in Appendix 2 to Annex 16-A of the USMCA, and the applicant must meet that profession’s own minimum credential. Gather citizenship proof, nursing credentials, licensing information, health-care-worker certification evidence, and an employer letter or contract describing prearranged professional activity for a U.S. employer or a foreign employer. Self-employment is prohibited. A Canadian citizen may request TN admission at an eligible port of entry or preclearance location, or a prospective employer may file Form I-129. A mistake is scheduling orientation before confirming that role, credential, certification, and practice authority align.
Hypothetical example: A London emergency-department registered nurse holds Canadian citizenship and Ontario registration, then receives a hospital letter saying only “clinical services.” Before travelling, the nurse asks the hospital to describe the professional duties and intended employment, verifies the registered-nurse credential requirement, completes the applicable health-care certification process, and checks state practice authority. Hospital interest cannot cure a vague role or unfinished credential.