State law covering ESAs in housingHB 703 (2023) — requires a 30-day relationship with a licensed provider before an esa letterYes
Effect of HUD's May 2026 changeState route exists but ESA treatment is unsettledModerate
Minimum client–provider relationship30 days, required before a letter can issue30 days
Pet fees and deposits for an approved ESANo longer automatic at the federal level after May 2026Case by case
Penalty for false documentationNo ESA-specific penalty statute; general fraud and misrepresentation law still appliesGeneral law
Public access rights for ESAsIn Montana or any state — that is a trained-service-animal right under the ADANone
Where a complaint goesMontana Human Rights BureauHRB