If the fence doesn't stop you, you can.
No he must have to renew his visa by applying again.
A person with an expired visa must apply for a new visa prior to applying for US citizenship. You can't apply when you have an expired visa.
If you are inside the United States with an expired visa of any kind, you are considered illegal.
Yes, the visa is still valid, but you will have to bring both passports (new & the expired one) every time you use visa.
Yes, a US citizen can marry an illegal alien whose Visa has expired in San Francisco. The illegal will still have to renew their Visa to stay in the US.
can i return to US with five years visa
Unless you marry her, she had better get that visa renewed or risk deportation and not be able to re-enter the U.S for 10 years!
An illegal alien.
Technically, you can return to your country after overstaying your visa then return to the US. However, you must not that if you have been illegally present in the US for a long time, you will be barred from returning to the US for 3 or 10 years.
If you are married to a US citizen but your tourist visa is expired and you lost your I-94, you should immediately apply for a new visa or return to your country. Your I-94 is filed electronically, and you can get a new copy from the Department of Homeland Security. If you don't take action yourself, you may end up being deported and not allowed to return.
Since the F-1 visa expired, they no longer have current legal status, so it is not possible to renew or get a new F-1 visa. A work or investment visa is out of the question because she would not be eligible for one due to her non-legal status. Basically, the only way to stay IN the U.S. and get legal status is by marrying a U.S. citizen.
Work visa can be got through employers only. Either company in US should recruit you and apply for your work visa or company in your home country also can send you to work in US on a work visa. Depending on the requirement and your eligibility you will be issued a visa with which you get authorization to work in US.