Minn. Stat. § 501C.0304: REPRESENTATION BY PERSON HAVING SUBSTANTIALLY IDENTICAL INTEREST.

Unless otherwise represented under section 501C.0302, 501C.0303, or 501C.0305, a minor, an incapacitated or unborn individual, or a person whose identity or location is unknown and not reasonably ascertainable after making reasonable efforts to locate such person, may be represented by and bound by another having a substantially identical interest with respect to the particular question or dispute, but only to the extent there is no conflict of interest between the representative and the person represented.