Some big changes to tenancy law came into force just before Christmas.
The Residential Tenancies Act was passed in December, bringing in so-called "pet bonds" - that will let landlords charge slightly more in bond if a tenant has a pet.
It also re-introduces 90-day notice 'no clause' terminations for periodic tenancies, as well as clarifying that landlords can prohibit smoking inside their rental.
Andrew Hubbard is deputy chief executive of the Citizens Advice Bureau, which has compiled a resource website called Aratohu on behalf of the Tenant Advocates Network - a national group of organisations involved in tenant advocacy.
He breaks down some of the core changes.