A consultant's suggestion that listing alerts powered by data multiple listing services provide to Realtors Property Resource could help lenders take business away from real estate brokerages' own mortgage operations has sparked an ongoing debate over the use of MLS data.Last month, real estate information and technology firm Lender Processing Services Inc. (LPS) announced a new service, which provides loan servicers with a notification when a property in their loan portfolio is listed in an MLS. The "It's Listed!" alerts rely on MLS data from RPR, a National Association of Realtors subsidiary. In a blog post Friday titled "WTF RPR?" Brian Boero, a principal of real estate marketing, design and strategy firm 1000watt, said the deal means the brokers who own those MLS l...