A transparency feature included in the Dodd-Frank Act aimed at helping MBS and ABS investors understand the representations and warranties on a transaction has created a significant amount of work for rating services with little benefit for investors, according to officials at ratings firms. Since June 2015, rating services have been required by the DFA to compare the reps and warrants on a transaction they’re rating with a benchmark set of reps and warrants for that asset class. These 17g-7 reports often span hundreds of pages, detailing similarities and differences between the reps and warrants on a specific transaction compared with a set of benchmarks established by the rating services. Claire Mezzanotte, a group managing director and head of global structured finance at DBRS, said...