My b2 Visa will expire feb 22. Can I ask for extension?

Although this answer may not help you at this point (it being after February 22), anyone who is in the US with a valid B-2 status is allowed to request an extension with U.S.C.I.S. on form I-539 application to change or extend status in the United States. Such application should be filed with an explanation of the reason why an extension is required, proof of financial ability to remain in the US during the requested period of stay without working, and proof of arrangements to leave the US on or before the ending date of the requested extension. A note of caution should be inserted that U.S.C.I.S. denial after the date of valid B-2 status expiration automatically invalidates the visa in the passport. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.