The number of new foreclosure cases in South Florida has increased this year after a long decline deepened by the “robo-signing” debacle that came to light two years ago, exposing major lenders’ abuse of legal procedures to repossess property.

“We are unbelievably busy on the foreclosure side,” said Roy Oppenheim, co-founder and senior partner of Oppenheim Law in Weston, a foreclosure defense firm. “Maybe there are less law firms doing it, or the banks are just trying to catch up right now and put as many through as possible. I can’t explain it.”