Section Man 208.07 - Joinder and Substitution of Parties and Consolidation of Actions(a) If the property subject to a proceeding is conveyed while an action is pending, the original party shall continue to be a party, unless the board, on its own motion or upon a motion by the original party and after notice, directs the person to whom the interest has been transferred to be substituted for or joined with the original party. Parties claiming entitlement to their predecessor's rights, such as the predecessor's filing of complaint, shall file an assignment of rights from the predecessor to the grantee of the transfer which shall be signed by the predecessor.(b) In exercising its discretion to permit joinder or substitution of a party the board shall determine that all of the following factors are present::(1) That the new owner party has agreed to the substitution or joinder;(2) That the new party is in an advantageous position to present important facts or legal argument to the board;(3) That the board's decision will substantially affect the new party's rights or privileges; and(4) That the joinder of the new party will aid the fair, accurate and efficient resolution of the issues.(c) In actions involving common questions of law or fact the presiding officer shall upon motion or his or her own initiative:(1) Consolidate part of or all of the actions, including consolidation for hearings and decisions; and(2) Make such orders concerning proceedings therein to avoid unnecessary costs or delay.N.H. Admin. Code § Man 208.07