Better Service to Borrowers Act of 2019 This bill requires the Department of Education (ED) to develop and update a manual of common procedures and policies for loan servicers that enter into contracts with ED for the origination, servicing, and collection of loans under the Federal Family Education Loan program, the Federal Direct Loan program, and the Federal Perkins Loan program. Such manual must include a minimum standard of quality and practice to ensure that borrowers are well-served by loan servicers.