Yes, auto insurance is required by law in all 50 states.
In certain cases you can get standard auto insurance. If you are not eligible, you can get SR22 coverage, which is specifically for people with DUI’s on their record.
In almost every case, theft will be covered with your auto insurance policy
Auto insurance payments are not tax deductible.
Umbrella coverage is a level of coverage above and beyond your regular insurance coverage and covers things outside of standard insurance. Depending on how much coverage you want, the costs will vary.