As a professional you are expected to provide high quality work. You will need a good level of knowledge and experience in your business area. If you have a license or certification you should be able to meet a certain quality level. However, you need to protect yourself against any claims for negligence. You can do this by obtaining e&o. This type of insurance is also known as professional liability insurance. Keep in mind that this is not the same with general liability coverage. First of all you need to get familiar with the limits for an errors and omissions insurance. You will be protected against lawsuits. However, you will have a limit of money stated on the insurance contract. Discovering the various types of errors and omissions insurances can bring you a better protection. Check what is covered by this type of insurance.