New foreclosure cases dropped by one-third last year from 2015, while court judgments against Westchester homeowners remained high.
Foreclosure activity by lenders this year already exceeds full-year numbers in 2011 and 2012.
A revived housing market has raised Westchester County mortgage tax revenue to its highest midyear level in five years.
The year-to-year rate nearly doubles.
Court appeals by commercial property owners challenging their tax assessments dropped in 2012 for the first time since the recession and real estate market slump.