It is legal and so far it has been safe. You know that the rule for Day 1 CPT requires that when you join, you are associating with a graduate program otherwise you cannot get a Day 1 CPT. The Curricular Practical Training is an integral part of your degree. You cannot finish the degree without the practical training. The other thing is the employer signs the cooperative agreement with the university. The only additional suggestion I have is if you are going to do Curricular Practical Training make it as an adjunct to your profession.
For more information please check my blog.
https://immigration.com/blogs/curricular-practical-training-cpt
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Rajiv Khanna and his office associates helped in all aspects of my green card applications and made it as smooth as possible. They are very well talented and experienced to handle any kind of case. My special thanks to Rajiv, Suman Leila, and Diane who very always there to help and answer all the questions at any time.