[Business Transactions and Commercial Finance Commercial Litigation Construction Law Flamm Walton Heimbach and Lamm Flamm Walton Heimbach and Lamm started in 1996 with several leaders from one of Philadelphia's oldest and most venerated law firms, Clark Ladner Fortenbaugh & Young. Starting with eight attorneys, the Firm quickly became known for providing high-quality legal services with a focus on efficiency and effectiveness for its clients' business goals.]