Chapman wrote the book on the marketplace lending regulatory landscape that the entire industry has come to rely upon. First published in 2013, the 2025 update covers a vast array of topics including recent federal, state, and litigation developments and a new section on digital assets, highlighting blockchain, stablecoin legislation, and potential impacts on the marketplace lending industry. This edition reflects post-election regulatory shifts, ongoing true lender litigation, and new challenges for products such as Buy Now Pay Later and Earned Wage Access. The Appendix A supplement provides a historical review of the origins of the marketplace lending industry and related aspects, including securities laws, bankruptcy considerations, tax considerations, blockchain, and crowdfunding rules.