Title 44, Chapter 6, Section 161
If the party desiring the writ of partition is of full age and free
from disability, he may make the application either in person or by
his agent or attorney in fact or at law. An application may be made
for the benefit of a minor, a mentally ill or retarded person, or
the beneficiary of a trust by the guardian of such minor, the
guardian of such mentally ill or retarded person, or the trustee of
such beneficiary, as the case may be.