Why Applied Legal? Applied Legal instruction is created and presented by a team of licensed attorneys with more than 25 years of California construction law experience. Learn the foundation of Mechanics Liens, Preliminary Notices, Payment Bond Claims and other valuable tools that will help you protect yourself and your business. What You Don't Know CAN Hurt You Getting paid on time or not at all could come down to how and when you filled out the correct form. Applied Legal explains the law and puts the power of knowledge on your side.