The initial wrongful death lawsuit filed by Hall was dismissed earlier this year because it was outside the statute of limitations.
No criminal charges have been filed, although Mark Redwine has been labeled as a "person of interest."
Dylan Redwine was last seen at his father's home in Vallecito in November 2012. Some of his remains were discovered near Vallecito Reservoir in 2013.
The boy, who was 13 at the time, was on a court-ordered visit to see his father near Durango.
His death remains unsolved.