In a few states, you must take an additional step to make your company official: You must publish a simple notice in a local newspaper, stating that you intend to form an LLC. You are required to publish the notice several times over a period of weeks and then submit an "affidavit of publication" to the LLC filing office. Your local newspaper should be able to help you with this filing.
General liability insurance is not typically a legal requirement, but it is very strongly recommended. This policy protects your business assets from lawsuits-without it, a legal claim could force your company out of business entirely. A general liability insurance policy covers injuries, property damage, personal liabilities, advertising liabilities, and legal defense and judgment.