Tenant Screening

Can landlords require co-signers for rental approval?

Michigan rental guidance and tenant-landlord operational information.
Published March 19, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 76 days ago · Michigan

Tenant Screening in Michigan: Can Landlords Require Co-Signers for Rental Approval?

For landlords operating in Michigan, understanding the legal and practical aspects of tenant screening is essential to making informed leasing decisions. One common question is whether landlords can require co-signers as part of the tenant approval process. This guide provides a comprehensive overview of the guidelines and best practices under Michigan law related to requiring co-signers.


Understanding Co-Signers in the Rental Application Process

A co-signer, also known as a guarantor, is a third party who agrees to assume responsibility for fulfilling the lease obligations if the primary tenant defaults. Co-signers provide landlords with additional security, particularly when a prospective tenant’s financial history or creditworthiness raises concerns.


Can Michigan Landlords Require Co-Signers?

Legality of Requiring Co-Signers

In Michigan, landlords are permitted to require co-signers as part of the tenant screening and approval process. This is a lawful and common practice used to reduce the risk of nonpayment or lease violations. While Michigan does not specifically regulate the use of co-signers in landlord-tenant law, landlords must ensure their screening practices comply with federal and state anti-discrimination laws.

  • Requirement Disclosure: If a landlord intends to require a co-signer, this condition should be clearly communicated upfront, ideally included in the rental advertisement or application instructions.
  • Consistent Application: Michigan landlords must apply the co-signer requirement consistently to avoid claims of discrimination. For example, targeting only applicants of a particular race, national origin, or familial status for co-signers could be illegal under the Michigan Elliott-Larsen Civil Rights Act.

When Can a Co-Signer Be Required?

Landlords generally request co-signers in situations such as:

  • Insufficient Income: Applicants whose income does not meet the minimum threshold (often 2.5 to 3 times the monthly rent) might be required to have a co-signer.
  • Poor or No Credit History: Applicants with limited credit history or low credit scores may be asked to provide a guarantor.
  • Previous Rental Issues: A history of eviction, lease violations, or insufficient rental references can prompt the landlord to seek added security.
  • First-Time Renters: Students or young renters with no established credit often need co-signers.

Legal Considerations for Landlords Regarding Co-Signers

Fair Housing Compliance

Michigan landlords must ensure that:
  • Requiring a co-signer does not have a disparate impact on protected classes.
  • The screening policy is applied uniformly.
  • No discriminatory inquiries about race, religion, sex, familial status, disability, national origin, or other protected characteristics are made when evaluating co-signers.

Application and Lease Agreement

  • Written Agreement: The co-signer should sign a written guaranty agreement that explicitly states their obligation in case of tenant default.
  • Separate From Tenant's Lease: While co-signers are responsible for the tenant’s obligations, they typically do not occupy the property.
  • Scope of Liability: The guarantor’s liability should cover rent, damages, legal fees, and any other landlord losses related to tenant default.

Best Practices for Michigan Landlords Requiring Co-Signers

  1. Establish Clear Policies
Define clear, objective criteria as part of your tenant screening policy for when a co-signer is needed. Document and communicate these standards to prospective tenants.
  1. Verify Co-Signers Thoroughly
Since the co-signer assumes financial responsibility, conduct credit checks, employment verification, and background screening on all co-signers just as you do for tenants.
  1. Use a Written Guaranty
Have a legally binding guaranty agreement drafted or reviewed by an attorney to ensure it complies with Michigan laws and clearly outlines the guarantor's obligations.
  1. Maintain Consistency to Avoid Discrimination Claims
Apply the co-signer requirement consistently across all applicants who meet your risk criteria to prevent accusations of unfair treatment.
  1. Educate Applicants
Explain why co-signers may be necessary and the responsibilities involved, helping applicants secure approved guarantors quickly.

Summary

Michigan landlords can legally require co-signers during tenant screening, especially when applicant financial qualifications fall short. This practice, when done fairly and consistently, provides landlords with a valuable means of risk management. To implement this properly, landlords should:

  • Be transparent and consistent in the application of co-signer requirements.
  • Conduct thorough screening of co-signers.
  • Utilize clear, enforceable guaranty agreements.
  • Adhere to Michigan’s anti-discrimination laws.
By following these guidelines, landlords in Michigan can protect their rental investments while maintaining fair housing compliance and fostering positive tenant relationships.

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