Professionals from different disciplines providing care and services to persons at risk for or victims of elder abuse have formed various multidisciplinary teams (MDTs). The purpose of the study was to identify the adult protective services-related statutory trends in presence of MDT content and to determine the association of MDT legislation on the rates of reported, investigated, and substantiated domestic elder abuse. Aggregate reports of elder abuse and state statutes for 1999 and 2007 were retrieved from 50 states and the District of Columbia. Statutes of eight states in 2000 and nine in 2008 included text about MDTs. In 2007, investigation rates for those states having MDT text in the statutes were significantly higher than those states without. The incidence of MDTs in the country is unknown. Legislative text is but one factor associated with differences in elder abuse report, investigation, or substantiation rates.