More than 1 million Wisconsin residents live in rental housing – most with security deposits that often equal as much as a month's rent – which means there is a significant amount of money in flux at any given time.

Therefore, it is no wonder that issues pertaining to security deposits were the leading driver of landlord/tenant complaints to the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) in 2016. DATCP received 1,121 complaints in the landlord/tenant category last year, second only to telemarketing.

After security deposits, consumer complaints focused on unauthorized entry, inadequate disclosures and evictions. Some basics to know about these subjects:

Unauthorized entry: Unless there is an emergency, a landlord must give 12-hours advance notice before entering a unit.