In the Matter of Glenda J. Ball and Frank A. Ball

■ CONBOY, J.

The respondent, Frank A. Ball, appeals an order of the 9th Circuit Court — Nashua Family Division {Ryan, J.) denying his motion to terminate his obligation to support the parties’ eldest child because she had turned 18 and had graduated from high school. We reverse and remand.

I. Background

The pertinent facts are as follows. The respondent and the petitioner, Glenda J. Ball, were married in 1994 and separated in 2004. They have three children: a daughter born in 1995, a son born in 1997, and another son born in 1999.

In July 2005, the parties entered into a separation agreement in…