I am an MBA graduate currently working on OPT. My OPT is expiring on March 31st and my employer can file my H1 in April. I am currently looking for options to change my status to CPT so that I can continue my job and my employer can file my H1. Is this a valid change of status and would it impact H1 filing and approval? Also, i am opting for Computer Systems Institue, Chicago IL, where they are providing CPT from day 1. Need inputs on this at the earliest.