International Student Wants to Change Schools

Hello. I need some expert help. I have a niece who wants to come to the United States to study. She currently has been accepted and received her F-1 visa, I-20, and SEVIS from a college in Washington state. She since found out she has family in Texas and is wanting to come here instead. Her plane ticket has already been purchased and she is due to arrive in Texas at the end of the month. She is due to show up for orientation at the school in Washington at the end of December. What can she legally do, whether back home or when she arrives here, that will allow her to continue with her plan to study abroad in Texas. This is my first time dealing with an international student and don't know what needs to be done.

If she enters the US, she needs to attend classes at the school she is enrolled in. She can work on transferring to a school in Texas while she is taking classes.
Alternatively, she can stay home and reapply for everything for the new school.

Note that the "family in Texas" may set off flags that she had immigrant intent rather than wanting to legitimately study in the US.

The university she is scheduled to attend can choose to release her to attend another school or not. The school and department I know best has the policy of not allowing the transfer the first semester. The student either attend there or goes home. The school is also known to escort some students to the airport to make sure they depart.

If she wants to go to the Texas school, she can do so properly next year. If she wants to attend this semester, she needs to book her ticket to Washington.