if your roommate has his MMJ card he should be able to find out where to get the applicaton, or you can just go the the proper state website and download the PDF caregivers application and fill it out with your roomate as the patient and mail it in, that simple, or atleast it is here in Maine, the process coulod be diffent, but your roomamte should defienly know how to get in touch with someone who can help if he has his card