Okay, so you want to know how you can register your vehicle while you are outside of New York state?
yes
You can apply for a New York State registration and a title certificate by mail from outside of New York. You will need to mail these items to a local DMV office
for proof of ownership can I send a copy ?
It must be original, we don't accept photocopies
can I just do an in-transit permit?
If you are traveling and your registration expires, you should determine if the other state can issue an "in-transit" permit, which allows you to transport a vehicle to New York so that you can register it.
what is the form that I will need to register?
You will need to send in a completed Vehicle Registration/Title Application
what counts as proof of ownership?
Proof can be either a NY State Certificate of Title, or acceptable proof of ownership from any other state and we do not accept photocopies
how do I get my documents back fast?