2021年度商务邀请函精选(英文)-条据书信 商务邀请函一 to whom it may concern: i am writing this letter to invite our/my parents (name and brith days) to visit us in canada this coming may for a period of 3 months. it goes without saying that we will cover all expenses during their visit in canada, which includes international air tickets, local transportation, accmodations, medical insurances and all other related expenses. your favourable consideration regarding their visa applications will be highly