AZ SB1303

Requires owners of residential rental property to register with the county assessor and maintain current information including owner contact details, property address, and year built, updating within 10 days of any changes.

Allows tenants to terminate their lease and recover prepaid rent and deposits if the owner fails to register after receiving a 10-day written notice to comply.

Establishes civil penalties for non-compliance: $1,000 plus $100 per month for newly acquired properties, and up to $150 per day for other properties, with 10-day cure periods to avoid penalties.

Requires cities and towns to award 10% of collected penalties to any person who reported the violation.

Permits county assessors to charge up to $10 per initial registration and information change, and requires assessors to provide cities and towns with updated lists of registered rental properties upon request.