If your mother married your stepfather BEFORE you turned 18, then yes, he can petition you along with you mother (needs a separate petition) and you would be eligible to adjust status as well, with your mom.
You must be under 18 in order to have your step-father file for you to receive the green card at the same time. Thus, your mother will have to file for your green card after she receives her green card. However, this will have a backlog for several years and not provide any immediate immigration benefits. Thus, if you are in the US, you will need to maintain your visa status or return home and wait for your mom's case to come current.
If your mother's marriage to a U.S. citizen occurred before your 18-th birthday, then you are eligible to adjust your status (obtain permanent residency) through the same U.S. citizen. However, if the marriage occurred after the 18-th birthday then you won't be able to benefit from your mother's marriage. Retain an immigration attorney to help you resolve this issue.
If they married before you turned 18, you can file as dependent. Otherwise, you'll have to wait until your mother becomes a permanent resident, she'll have to file a petition for you.
If your mother married your step-father while you were still under 18 years of age and you entered the country legally, your step-father can petition for you as his immediate relative and you are eligible to apply for adjustment of status concurrently. The petition is filed on form I-130, and your application for adjustment of status is filed on form I-485.
Consumers can use this platform to pose legal questions to real lawyers and receive free insights.
Participating legal professionals get the opportunity to speak directly with people who may need their services, as well as enhance their standing in the Lawyers.com community.