My license has been expired for about a year and a half. Will they still accept it?
Yes. As long as your license hasn't been expired for more than 2 years, it will be accepted as a proof of identification.
If I do decide to do this by mail, where do I send it to?
The address that you will need to send your documents and payment to is the NYS DMV Title Services Department of Motor Vehicles, 6 Empire State Plaza, Albany, NY 12228-0331.