M.R. Civ. P. 111

(a) Joinder.

(1) Joinder of Claims and Remedies. Grandparent visitation and

emancipation actions shall not be joined with other Family Division actions.

Any other claim, counterclaim or request for relief that could be brought as a

separate Family Division action may be joined to an action under these rules.

(2) Joinder of Persons or Entities. The only persons who may be

joined as parties to an action under these rules are persons or entities

specifically authorized to file or participate in a Family Division action by Title

19-A of the Maine Revised Statutes. However, persons who file emancipation

or grandparents’ visitation actions may not be joined.

(b) Consolidation. Rule 42 governs consolidation in Family Division

matters.

(c) Intervention. A person may petition to intervene in a Family Division

action only when that intervention is specifically authorized by statute, or when

the individual or entity would be authorized to file a complaint or

post-judgment motion involving one or more of the same parties and issues

that are being addressed in the Family Division action in which the person is

seeking to intervene. A person asserting a claim for parentage or de facto

parentage may not intervene in a pending divorce or parental rights and

responsibilities case, but must file and serve a separate petition for parentage

and parental rights and responsibilities. Where intervention is authorized,

practice regarding intervention is governed by Rule 24.