Central Florida's still-slow residential real estate market now is taking its toll on the Realtor association membership rolls statewide. On the local front, the Orlando Regional Realtor Association's just-released numbers show a 13.3 percent membership drop from 12,616 in 2007 to 10,940 through Feb. 26 this year -- a 19 percent drop from the association's all-time high of 13,500 in 2006 during the peak...