Are you able to walk in and hand in your paperwork instead of mailing

Only if you have an appointment. But I couldn't get through to make one.

Yes

As of August 8th, 2022 you can walk in instead of mailing , unless there is a clear direction to mail particular as paperwork in.

Can I wake in personally

Website says by appointment only and even then it has to be urgent; they never answer the phone, NVM trying to get any work out of them...