Tenant Screening

Can landlords require co-signers for rental approval?

Massachusetts rental guidance and tenant-landlord operational information.
Published March 12, 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 83 days ago · Massachusetts

Can Landlords Require Co-Signers for Rental Approval in Massachusetts?

In Massachusetts, landlords have the right to establish reasonable criteria for tenant screening to ensure that rental applicants meet their qualifications. One commonly asked question is whether landlords can require co-signers (also known as guarantors) as a condition for rental approval. Understanding the legal framework and best practices surrounding co-signers can help landlords navigate this process smoothly while complying with state laws.

Understanding the Role of Co-Signers in Massachusetts Rentals

A co-signer or guarantor is someone who agrees to be responsible for the lease obligations if the primary tenant fails to fulfill them. This includes paying rent, covering damages, and adhering to other lease provisions.

  • Purpose of requiring a co-signer: Landlords typically ask for a co-signer when the primary applicant’s creditworthiness, income, or rental history does not fully meet the landlord’s standards. For example, applicants who are students, have low income, limited credit history, or poor credit scores may be asked to provide a co-signer to mitigate financial risk.
  • Form of co-signers: The co-signer is usually required to sign the lease or a separate guaranty agreement, making them legally liable for lease performance.

Legal Considerations in Requiring Co-Signers

Under Massachusetts law, landlords generally may require a co-signer as part of tenant screening. However, there are important considerations regarding fairness, nondiscrimination, and compliance with local regulations.

1. Nondiscrimination Obligations

Landlords must ensure their screening criteria, including co-signer requirements, do not discriminate against protected classes under the Massachusetts Fair Housing Law. Protected classes include race, color, religious creed, national origin, sex, gender identity, sexual orientation, genetic information, ancestry, children, marital status, veteran status, age, or disability.

  • Require co-signers consistently based on objective financial and rental qualifications rather than personal characteristics.
  • Avoid policies that disproportionately affect protected classes or individuals with disabilities.
2. Compliance with Screening and Reporting Laws
  • Massachusetts landlords must adhere to all applicable tenant screening laws, including the federal Fair Credit Reporting Act, when evaluating credit and application materials.
  • If requesting co-signers based on credit or income, maintain transparent, documented policies and communicate clearly with applicants about the criteria.
3. Security Deposit Limitations

Massachusetts law limits security deposits to no more than one month's rent. Requiring a co-signer does not replace the obligation to comply with security deposit regulations but serves as an additional financial assurance.

Best Practices for Landlords When Requiring Co-Signers in Massachusetts

To ensure a compliant and efficient process when requiring co-signers, landlords should consider the following best practices:

  • Establish Clear Written Policies: Document your criteria for when a co-signer will be required. For example, you might require a co-signer if the applicant’s income is below a certain threshold or if their credit score falls under a specified minimum.
  • Communicate Requirements Clearly: Inform applicants early about the potential need for a co-signer and what documentation is required. This can include proof of income, credit reports, and co-signer agreements.
  • Use Formal Guaranty Agreements: Have co-signers sign a clear guaranty agreement specifying their responsibilities, duration of liability, and enforcement terms.
  • Verify Co-Signer Qualifications: Screen co-signers similarly to primary tenants by verifying income, credit, and rental history. Effective screening protects landlords from potential defaults.
  • Keep Records: Maintain thorough records of communications, screening outcome, and signed agreements. This documentation is essential in the event of disputes.
  • Respect Reasonable Accommodations: Be prepared to engage with applicants who may request accommodations due to disabilities that affect their ability to provide a co-signer.

Common Scenarios Where Co-Signers Are Often Required

  • Students or Recent Graduates: Many landlords request co-signers for applicants with limited or no independent income history.
  • Low-Income Applicants: When income does not meet the landlord’s minimum requirements, a co-signer with stronger financial footing can provide assurance.
  • Credit Issues: Applicants with poor or no credit history might be required to provide a financially responsible co-signer.
  • First-Time Renters: Individuals new to renting may have limited rental history, prompting landlord requests for a guarantor.

Summary

In Massachusetts, landlords are permitted to require co-signers for rental approval as part of their tenant screening process, provided such requirements are applied consistently, fairly, and in compliance with state fair housing laws. Co-signers help landlords reduce financial risk by ensuring that lease obligations will be met even if the primary tenant defaults.

By implementing clear policies, properly screening co-signers, and maintaining transparent communication, Massachusetts landlords can effectively utilize co-signers as a valuable tool in the tenant selection process. This approach not only safeguards the rental investment but also fosters a professional and compliant leasing environment.

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