Invitation letters provide a valid purpose of entry into the country for nonresidents. The letter of invitation is an official document signed by the sponsor, often in the presence of a notary. The person issuing this letter must be a citizen or permanent resident of the country being visited. Although visa invitation letters aren't always required, the presentation of one with an entry application helps prove the validity of the foreigner's visit. Additional responsibilities of the issuer may include hosting the visitor by accommodating and agreeing to financial expenses for the duration of their stay.
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