模板一：
MM DD, 2014
Dear Visa Officer,
I, XXX(passport #: XXX) and my husband, YYY(passport #: YYY), are writing this letter to support of the B-2 visa applications for my father XXX (passport #: XXX) and my mother YYY (passport #: YYY). We invite them to visit us from DD MM YYYY to DD MM YYYY, approximate X months.
During the visit, my parents will live with us in our apartment at XXXX(美国的具体家庭地址). We plan to take them to travel around some famous cities in America, such as New York, Washington DC, Atlantic seashore, Falls of Niagara, Yellowstone National Park, San Diego and so on, to let them know how the Americans and we are living, as well as how we celebrate the Thanksgiving day, the Christmas, and the Chinese New-Year in USA. They will support all their expense, and we will support them in any emergency cases.
I'm now work as XXX(职务) with X visa at XXX company/came to US with X visa to reunion my husband, and my husband work at YYY with Y visa, and currently is XX(职务) in Department of XXX. Please find photocopies of our passports, USA visa, I-94 and other documents in the supporting material for your reference.
My parents have very strong bonds in XXX, China, it's where they born, grew up, and living, where they have their own house and all their friends. They will return to China after their visit, and we also guarantee they will return to China after the visit.
I greatly appreciate your time to process their applications. Should you have any questions, please do not hesitate to contact us.
Sincerely yours,
Daughter: XXX (加签名) Son-in-law: YYY (加签名)
XXX (职位) YYY(职位)
XXX (部门) YYY (部门)
XXX (单位/学校名字) YYY(单位/学校名字)
Tel: XXX Tel: YYY
Email: XXX Email: YYY
模板二：
To whom it may concern:
I am writing this letter to invite our parents *** (name and brithdays) to visit us in *** (country) this coming *** (month) for a period of 6 months.
It goes without saying that we will cover all expenses during their visit in *** (country), 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 appreciated. If you have any question regarding this matter, please kindly contact me at the address above ***
Sincerely,