A sample letter for a visa request should include a direct salutation to the specific consulate that the letter is being sent to, the name of the person requesting the visa and the reasons the visa is being requested. A request for a visa should also include information on what the visa is going to be used for.
The letter should be a formal one and should always include a subject at the top of it. The writer of the letter should explain who they are and what they do. They should explain why they want the visa and why a visa would be relevant to what they need to do. The amount of time that the visa is being requested for should be close to the beginning of the letter, shortly after the writer has identified who they are and the purpose of the letter.
The second part of the letter should state the writer's responsibility of the people that the visa is being requested for. It should state that the writer will be responsible for all actions as well as financial burdens that are caused by the people visiting the country. The letter should be formally closed with a signature.