About Us For more than 25 years, the respected Harrisburg attorneys at Marzzacco Niven & Associates have been providing comprehensive legal services to people who have suffered an injury at work or who are living with a medical condition that will not allow them to maintain full-time employment. Our firm's entire practice is dedicated to matters involving Personal Injury, Social Security Disability and Pennsylvania Workers' Compensation claims. Our lawyers have a complete understanding of the law, and we are committed to obtaining the best possible result in every case. We draw on our diverse experience and legal backgrounds to develop customized solutions designed specifically to accommodate our clients' needs.