I've been a volunteer ESL teacher for two organizations already. What's the fastest route to becoming a paid ESL teacher in NYS? What are the minimum requirements to teach? Where should I take courses? I scoured the internet for information already but I can't seem to find a clear answer.
Thanks so much for your help!

good question, how does anybody become anything in New York? Apply for a zillion positions and don't be afraid to be shot down. oh yeah and work hard:)
GOOD LUCK:D

Go to this website:

http://schools.nyc.gov/Offices/DHR/Applicants/

It has contacts, instructions, forms, etc.

Contact the New York City Department of Education.

You can get information here http://schools.nyc.gov/Careers/default.htm