its clients in all facets of civil. Professional Qualifications of B. ns Legal background of B. ns, Attorney at Law, summarizing education, professional experience, professional associations, books and articles written, and. Community Focus Your Community in Focus Flint Find a local business or service. Your Canonsburg local business guide. Support Local! P. Elster Elster Law Office St. Louis Attorney P. Elster. Elster is a native of Parkesburg Saint Louis County, Rolesville Missouri. He graduated from High School, Saint Louis University and Saint Louis Tomball University Law.