Guarantors on Student Leases

The Bronx homes that Sandhills Real Estate, the company Richard Joseph Spinelli cofounded in 2020, leases to Fordham student households are shared apartments and townhouses, and across the student rental market a lease of that kind very often carries a second signature from someone who will never live there. That person is the guarantor. A college student usually has little income of their own and no rental history, so a landlord asks an adult with both, most often a parent, to promise that the lease will be honored if the student cannot honor it. The form reaches a large share of families. An August 2026 article in In These Times put the share of undergraduates living off campus at about 52 percent at public four year universities and 44 percent at private ones.⁷

The idea is old and simple, but the words around it are used loosely, and the obligation is larger than many families assume. This entry defines the terms first and then sets out what university housing offices tell students and parents.

Guarantor

A guarantor is a person who backs another person’s lease. A leasing guide from Florida State University explains that many students without steady income or sufficient rental history need a guarantor, typically a parent or guardian, who agrees to answer for the lease.¹ East Carolina University describes the guarantor as someone who signs the lease along with the tenant, and notes that full time students are typically required to have one.²

The guarantor is screened much like a tenant. East Carolina says a guarantor must, in most cases, earn three times the amount due each month and must agree to a check of credit and rental payment history before qualifying.² Florida State adds that the guarantor typically has to meet the same requirements as the tenant, and that the industry standard its guide cites is a guarantor at least 27 years old.¹

What a guarantor does not gain is a home. Florida State notes that, despite carrying the obligation, a guarantor does not have the tenant’s right to live in or enter the premises.¹

Cosigner

The word cosigner is often used as a plain synonym. Florida State writes of a co signer or guarantor in the same breath, and the University of South Carolina does the same, telling students that a co signer, also called a guarantor, can be a parent, a guardian or another trusted adult.¹³ In general usage, a cosigner sometimes means a person who signs as a party to the lease itself, while a guarantor signs a separate promise to answer for it. Which one a given form creates depends on its wording, so the label printed above the signature line matters less than the clauses under it.

South Carolina frames the choice as income or a backer. A renter usually needs an income of at least three times the amount due each month, or a co signer who meets that test on the renter’s behalf.³

Liability

Liability is the heart of the arrangement, and it is broad. Florida State says that by signing, the guarantor takes on an equal and complete share of every obligation in the lease, damages and other charges included, until the term ends. If the student defaults, the guarantor owes the outstanding debt, and the default can harm the guarantor’s credit score just as it would the student’s. Management that cannot reach a tenant about a serious issue will likely contact the guarantor instead.¹ East Carolina likewise warns that a tenant’s failure to pay may affect the guarantor’s credit.²

The reach of that promise depends on the kind of lease. On an individual lease, East Carolina explains, each tenant normally needs a guarantor of their own. On a group lease, where every tenant signs one document, at least one guarantor is responsible for the entire property, payment and damages alike.² That second case is where families are most often surprised. The Tenant Resource Center in Madison, Wisconsin, puts it bluntly: cosigning means answering for everything the lease requires, and not only the part that belongs to the person the cosigner cares about. A parent backing one student on a shared lease could end up covering someone the parent has never met.⁵ The rule behind that outcome has its own entry, joint and several leases.

What New York asks of a guarantor

New York City sets a higher bar than most college towns. Columbia University’s housing assistance office tells students that tenants in the city are generally expected to earn about forty times one month’s charge, and that guarantors are typically expected to earn eighty to one hundred times that amount.⁴ A guarantor submits the same papers a renter would: two pay stubs, two bank statements, tax returns and a letter from an employer. Landlords usually accept only guarantors who live in the city or the surrounding tri state area, so they can sign an original copy of the lease.⁴

Columbia answers the most common family question directly. Asked whether a guarantor can back only the student’s portion of a lease, the office says no: the guarantor is responsible for that portion and for anyone else on the lease. Once guarantors sign, they answer for missed payments and for the lease conditions.⁴ For students whose families live abroad, the office notes that a guarantor must live in the United States, so international students often turn to a third party guarantee company that landlords will accept.⁴ A June 2024 Gothamist report found that two such companies based in New York charge tenants anywhere from half of a month’s charge to more than a full month for the coverage, and that one of them had agreements with the owners and managers of about 700,000 apartments in the city. An executive there named students and newcomers without a United States credit history among the renters it serves.⁶ Florida State describes the same difficulty for international families, whose credit history may not be recognized, and notes that some communities work with guarantee companies or offer an alternative to a deposit.¹ The question matters to owners as well: Multifamily Dive reported in July 2025 that Yardi Matrix saw closer visa scrutiny as a risk for off campus housing, where international students often make up a significant share of residents.⁸

What universities tell families

The advice from campus offices is consistent. Florida State urges students to make sure a guarantor fully understands the obligation before signing, and never to ask someone to guarantee a lease unless the student trusts that person completely.¹ East Carolina points out that the student is bound once the student signs, with or without a guarantor, and suggests having the lease reviewed by its student attorney service when anything is unclear.²

The Tenant Resource Center adds a step aimed at the guarantor. Before cosigning, a parent can ask the students to write a roommate agreement stating which tenant owes what, and which obligations each cosigner is backing. The landlord has no duty to enforce such a document, but it gives the cosigner a paper trail for recovering money later from the tenant who caused the loss.⁵ The practice fits the academic lease cycle, in which a guarantor’s signature is usually gathered months before move in, and it applies whether the lease is written for a whole unit or, as in by the bed leasing, for each room separately. The wider market in which these forms circulate is covered under student housing; the company behind the Belmont homes has an entry at Sandhills.