Creates the Immigrant Tenant Protection Act. Defines terms. Provides that, with exceptions, a landlord shall not require disclosure of, disclose, intimidate, harass, or evict a tenant on the basis of a person’s immigration or citizenship status. Provides that an oral or written warning notice or explanation, given in good faith, regarding the applicable rental agreement, rules, regulations, lease, or law is not a violation of the Act. Provides that the Act does not enlarge or diminish a landlord’s right to terminate a tenancy pursuant to existing State or local law; nor does the Act enlarge or diminish any ability of local government to regulate or enforce a prohibition against a landlord’s harassment of a tenant. Provides that waiver of a right under the Act by a tenant, occupant, or person known to the landlord to be associated with a tenant or occupant is void as a matter of public policy. Provides remedies. Provides that an action for injunctive relief may be brought by a nonprofit organization. Provides that in a civil action involving a tenant’s or occupant’s housing rights, no inquiry shall be permitted into the tenant’s or occupant’s immigration or citizenship status, with exceptions. Contains a severability clause. Amends the Eviction Article of the Code of Civil Procedure. Provides that it is an affirmative defense to an eviction that a landlord engaged in conduct prohibited under the Immigrant Tenant Protection Act. Amends the Mobile Home Landlord and Tenant Rights Act. Provides that an eviction order may not be entered against a tenant as a reprisal for a tenant’s efforts to secure remedies under the Immigrant Tenant Protection Act. Effective immediately.