Can I apply for I-130 and I-485 after their I-94 expires?

Yes, you can adjust if you entered the US legally and overstayed, provided there are no other infractions. I would complete the applications...

What should a cancellation letter for a n-400 form look like?

How sure are you that the n-600 is the correct form? I would need more information before making a recommendation.

How long since you worked? You may be considered terminated. You may be eligible for a grace period but you also might have to return home. Can...

My mother lost her original i-539 approval letter. Can she travel with acknowledgement letter and case approval of USCIS.gov ?

She should be fine, as long as she has not stayed in the United States more than in her home country. She has done everything legally. There is a...

How long can a US citizen new born be out of their country for

Your child will always remain a US citizen. However, you may have to deal the immigration law of your home country.

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If he has no income, you will need a joint sponsor to complete the I-864 affidavit of support.

Form 130 for unmarried child over 21.

If he has changed his preference category there could be a longer wait for his priority date to be current. You can read the most recent Visa...

Since the charges were dismissed it's unlikely that it will have a major impact. However, he should disclose this information when requested by...

Committing fraud could result in jail time and/or deportation. You should assume that this could be discovered in the future and might affect your...

Now that the new administration is in office are immigration laws tougher?

As long as you have proof that the relationship is real and not a trick to get a green card, you should be okay. It's important to note, though,...