ICE will punish landlord if the landlord sign a lease with undocumented residents from Mexico and Haiti

 No, federal immigration authorities like ICE will not punish a landlord simply for signing a lease with undocumented residents. Under federal law, landlords are not required to act as immigration enforcers, and merely renting property to an undocumented immigrant does not constitute a crime. [1, 2, 3]

1. Federal Law and "Harboring"

While the Immigration and Nationality Act (INA) makes it a federal crime to knowingly "harbor" an undocumented person, U.S. federal courts have consistently ruled that simply entering into a normal landlord-tenant relationship does not count as harboring. [1, 2]

What is allowed: Charging market-rate rent, executing a standard lease agreement, and maintaining a normal business relationship.
What crosses the line: Actively hiding tenants from federal agents, providing free or heavily subsidized housing to help them evade law enforcement, or using fake names to conceal their presence. [1, 2]

2. ICE Demands and Subpoenas

While ICE cannot penalize a landlord for renting to undocumented immigrants, interior enforcement operations have expanded. [1, 2, 3]

Information Requests: ICE has increasingly issued administrative subpoenas asking landlords to turn over tenant information (leases, rental applications, and IDs). [1, 2]
Judicial vs. Administrative: Legal experts note that these administrative subpoenas are signed by agency officers—not judges. Unless a subpoena or warrant is signed by an independent federal court judge, landlords are not legally obligated to comply or grant agents access to private residential spaces. [1, 2, 3, 4]

3. State and Local Laws

The rules regarding what a landlord can ask a tenant depend entirely on the state where the property is located: [1]

Protective States: In states like California and Illinois, state law strictly prohibits landlords from inquiring about a tenant’s immigration status or threatening to report them to ICE. Landlords who do so face heavy civil fines. [1, 2, 3]
Strict States: States like Texas and Florida have historically attempted to curb undocumented migration, but the U.S. Supreme Court and federal appeals courts have struck down local city ordinances that attempted to fine landlords for renting to undocumented residents. [1, 2]

4. Legal Screening Practices

Landlords still maintain the right to screen all applicants equally based on legitimate business criteria: [1]

Requiring verifiable income.
Requesting identification (which can include a foreign passport or consular ID).
Checking credit or background history. [1, 2, 3, 4, 5]

As long as a landlord applies these screening standards equally to all applicants regardless of their race or national origin—abiding by the Fair Housing Act—they are legally safe renting to undocumented individuals from Mexico, Haiti, or any other nation. [1, 2, 3]