I dont agree with what Bash said, You could be right in your own way! But this might not apply to everyone. Im predicting the worst case and addressing to create a rigorous documents so USCIS wont have any choice but to issue an EAD. What you are sayin is write two letters and fill the I765 and get the EAD card.. If it was that simple then everyone who are here in student visa would apply..Why do you think they dont? May be you know some people who got it that way... ive seen people who applied and were asked 3 times to send additional documents and then eventually USCIS notified their university to terminate the students sevis for falysifying forging the documents and making false claim.. So this is not a simple game where you put 2+2 in the box and write 4.. You have to be well prepared.. Im not a expert just a thought..