The documents that you will need vary depending on the insurance company to which you apply. Generally, insurance companies want you to submit proof of your identity, your driving record and information about the vehicle you would like to insure.
Yes. If you are under 18, you are not allowed to drive between 12 AM and 5 AM unless a supervising licensed driver accompanies you. Also, you will not be able to drive with anyone who is under 18 years old for the initial 5 months after you have received your license.
Yes. You must carry car insurance. The state of Maryland requires that drivers carry liability insurance of $30,000 minimum, $60,000 per accident for bodily injury and $15,000 for property damage per accident.