Delaware Mortgage Electronic Registration Systems, Inc. (MERS DE) is a secure, web-based electronic registry service that tracks and records changes in the ownership and servicing of mortgage loans. It is used by mortgage lenders, services, and investors to register, track, and transfer ownership interests in mortgage loans. MERS DE allows lenders and services to record, track, and transfer ownership interests in mortgage loans electronically, without the need for manual documentation or recording fees. It also provides a centralized repository of loan-level data, making it easier to access and update loan information. In addition, MERS DE enables lenders and services to quickly and easily update loan-level information, such as loan balances, contact information, and account status. There are two types of Delaware Mortgage Electronic Registration Systems, Inc DE: MERS DE Standard and MERS DE Pro. MERS DE Standard is a basic registration service available for single-family and multi-family loans, and MERS DE Pro is an advanced registration service for multi-family loans.