Letters from the employers who can attest to the management duties, supported by payroll or tax records that fix the dates. The letters should describe responsibility rather than list a job title.
Letters that describe authority, dated by records that cannot be edited
Two kinds of document work together here. The first is the narrative: a signed letter from the lodge operation, on letterhead, stating the period Rowan worked there, the position, the number of staff he hired and scheduled, the departments under him, the budget or purchasing authority he exercised, and the property's size. The second is the anchor: T4 slips, records of employment, or a notice of assessment that independently confirms the dates the letter claims.
Officers are used to seeing generous letters, and a letter that no payroll record supports carries little weight. Where a former manager or owner is no longer available to sign, a copy of the original employment agreement and continuous payroll history is a workable substitute. Any document in another language needs a certified English translation.
Keep a duplicate set, because renewals are measured against what was presented the first time.