It is possible to obtain a green card (lawful permanent residency) with an M-1 visa. However, the process is slightly complicated.
Edmissions
To apply for a green card, the M-1 visa holder would need to qualify for an immigrant visa based on another category, such as through a family member or employer sponsorship, or through an asylum or refugee status.
The M-1 visa is not considered a dual-intent visa, meaning that the intent to immigrate to the United States permanently cannot be active at the time of application for the M-1 visa or at the time of entry to the United States..
While it is possible to adjust status to permanent residency from an M-1 visa within the United States, it may be more difficult to obtain the same from an M-1 visa than from other types of visas such as the H-1B or L-1 visa, which are considered dual-intent visas.
It is important to note that obtaining a green card is a complex process and each case is unique. So it is recommended to consult an experienced immigration professional for guidance on the best pathway to lawful permanent residency in the USA.