In re Richard M.

[¶ 1] The mother and father of Richard M. appeal from the District Court’s (Lewi-ston, Dow; J.) judgment terminating their parental rights to their son, pursuant to 22 M.R.S. § 4055(l)(A)'(l)(a), (B)(2)(b)(i)-(ii), '(iv) (2016). The parents challenge the sufficiency of the evidence supporting the court’s findings on parental unfitness and its discretionary finding that termination is in their son’s best interest. Contrary to the parents’ contentions, competent record evidence supports the court’s findings and its discretionary determination; therefore, we affirm.

I. BACKGROUND

[¶2] The court…