My recommendation would be that you return the $600 stipend to the grantor and maintain a record of the transaction and your written explanation to the grantor that you were not allowed to be compensated for the internship. This will allow you to demonstrate your intent and ameliorative actions to correct the problem/mistake should you be questioned about it, if ever, in the future. Continue with both your studies for completion of your degree and pursuit of your H-1B opportunity with your potential employer (requesting OPT authorization from your DSO for the transition period when the H filings will take place). You should consult with an experienced immigration attorney in guiding you through the H-1B process with your future employer and for eventually seeking lawful permanent resident status (LPR) via employment-based adjustment of status (predicated by the applicable labor certification through DOL) utilizing the available six-year H-1B dual intent "platform" for such processing (if you intend to remain in the U.S. indefinitely).
Answered on Mar 07th, 2013 at 9:01 PM