Partly. Credential evaluations, degree copies, and translations relating to the applicant generally stay useful for a later case. Employer-specific items, the support letter, the contract, and the duty description, are tied to the cancelled engagement and would need to be produced again.
Sort documents by whether they describe you or the job
Personal credential evidence does not expire because a project did. A translation of a diploma and an evaluation of a foreign credential remain what they were, and translation and evaluation are separate services that should not be conflated. Anything describing the engagement, its duties, its dates, its compensation, must be regenerated by whichever party engages the professional next.
Ask whether compensation, a stipend, or relocation support begins on hire or on clearance, and what happens if the condition takes longer than projected. The slowest items are rarely the government steps; they are the documents other people control. Whether the employer reimburses relocation, lease breakage, or return travel is a contractual question, often governed by a clawback clause tied to length of service. Canadians generally apply at a port of entry or through Form I-129, depending on the chosen procedure. For a Canadian, port-of-entry presentation and an employer's Form I-129 are alternative procedural possibilities whose costs and evidence differ.