Mass. Gen. Laws ch. 190B § 5-402 : REAL AND PERSONAL PROPERTY AND DOMESTIC RELATIONS — DESCENT AND DISTRIBUTION, WILLS, ESTATES OF DECEASED PERSONS AND ABSENTEES, GUARDIANSHIP, CONSERVATORSHIP AND TRUSTS — MASSACHUSETTS UNIFORM PROBATE CODE — PROTECTION OF PERSONS UNDER DISABILITY AND THEIR PROPERTY — MANAGEMENT OF PROPERTY OF PERSONS UNDER DISABILITY AND MINORS —402 - Protective proceedings; jurisdiction of business affairs of protected persons