Dear Consulate Officer, I am writing this letter to invite [Name of Applicant] to visit me in the United States of America. [Name of Applicant] is a dear friend of mine and I would be delighted to host him/her during his/her visit. [Name of Applicant] is a citizen of [Country of Applicant] and will be visiting the United States for tourism purposes. The duration of his/her stay will be [Number of Days] days, starting from [Date of Arrival] and ending on [Date of Departure]. During his/her stay, I will be responsible for all of [Name of Applicant]'s expenses, including accommodation, food, and transportation. I will also ensure that [Name of Applicant] abides by all of the laws and regulations of the United States. I am a permanent resident of the United States and have been living here for [Number of Years] years. I am employed as a [Occupation] and have a stable income. I have also traveled to [List of Countries Visited] and have never overstayed my visa or violated any immigration laws. I have attached copies of my passport and proof of employment to this letter. I am also willing to provide additional information or documentation if necessary. I kindly request that you grant [Name of Applicant] a tourist visa to visit the United States. I assure you that he/she will return to [Country of Applicant] at the end of his/her visit and will not overstay his/her visa. Thank you for your time and consideration. Sincerely, [Your Name]