If you do not have a Green Card, you will need to enter the United States with either a valid ESTA or an appropriate US visa, depending on the purpose and duration of your stay. There are many types of visas available, but they all must be obtained through a U.S. embassy or consulate office.
The rules regarding entry into the United States without a valid visa are complicated. If you are caught entering the country without a valid visa, you could be denied entry and deported. You should talk to a lawyer who can advise you on the best course of action given your situation.
If you have been residing in the United States as an asylee or refugee for the last year, you may be able to apply for a green card. If you presently have a T or U nonimmigrant visa, you may also be eligible to apply for a green card. You must fulfill several requirements to be considered for a green card application. Among other things, you must prove that you are not likely to become a public charge and that there is a shortage of skilled workers within the US economy.
The ability to obtain a green card in the United States depends on many factors including but not limited to your family status, criminal record, employment history, amount of money you have, etc. The immigration attorney with whom you work should be able to provide you with more information about your eligibility and help you prepare your application correctly.
The first step towards obtaining a green card is to determine if you are eligible. There are two ways of doing this: 1 by checking whether you meet the physical presence requirement or 2 by verifying whether you qualify as asylee or refugee. To check whether you meet the physical presence requirement, you need to demonstrate that you have been physically present in the United States for three months next immediately following any termination of parole into Canada. If this condition is met, you will be able to file an application with the Department of Homeland Security (DHS).
All visitors to the United States from foreign nations must provide a passport upon arrival (regardless of their country of citizenship). Permanent citizens and foreign nationalities may also require a visa to enter the United States. Before you begin your journey, you must apply for a visa. There are three types of visas: tourist, business, and permanent residence.
A tourist visa is required by all non-US citizens planning to visit the United States for less than 90 days. This includes vacationers as well as students who will be visiting American colleges and universities. The visa allows the visitor to enter the United States at one port of entry for up to 90 days. Multiple entries onto U.S. soil are not permitted during the course of the single trip. If you overstay your visa, you will be issued a fine when leaving the United States.
A business visa is required by all non-U.S. citizens planning to visit the United States in an official capacity, such as as employees or contractors. This includes people traveling on behalf of employers or clients, as well as anyone else who needs a visa to work in the United States. A business visa entitles its holder to enter the United States at any point of entry. It does not have to be used at first opportunity; instead it can be held until later, after the applicant has found a job in the United States.