The Harris Texas Underwriting Agreement of ABCs Mortgage Loan Trust 1999-4 is a legal document that outlines the agreement between Harris Texas and ABCs Mortgage Loan Trust 1999-4. This agreement involves the purchase of mortgage loans by ABCs Mortgage Loan Trust 1999-4, with Harris Texas acting as the underwriter. Prudential Securities, Inc. is also involved in this agreement, playing a role as a party to the underwriting process. Prudential Securities, Inc. may provide financial services and expertise throughout the underwriting process. There may be different types or variations of the Harris Texas Underwriting Agreement of ABCs Mortgage Loan Trust 1999-4 and Prudential Securities, Inc. For example, different agreements may exist for different batches or tranches of mortgage loans being underwritten by ABCs Mortgage Loan Trust 1999-4, with Harris Texas serving as the underwriter in each case. These variations may have specific terms and conditions tailored to the particular set of mortgage loans being underwritten. Keywords: Harris Texas, underwriting agreement, ABCs Mortgage Loan Trust 1999-4, Prudential Securities, Inc., mortgage loans, underwriter, financial services.