What’s right for your client: a personal cosigner, housing voucher, emergency grant, or lease support service like OneApp Greenlight?
Quick answer:
- Personal cosigner: Fixes an approval barrier fast, at no cost, but only works if your client has someone with strong credit willing to take on the liability.
- Housing voucher (e.g., Section 8): Provides ongoing rent support, but national wait times average around 26 months and can run past 10 years in major metros, according to a 2026 analysis of HUD data by the Center on Budget and Policy Priorities.
- Emergency grant: Can move in days if funds are on hand, but only covers cash gaps, not the reason a property denied the application, and grant funds run out.
- Lease support service (e.g., OneApp Greenlight): Works directly with the property manager to close an approval gap in days, and some options, including Greenlight, come at no cost to the nonprofit or the client.
If you’re a case manager, housing navigator, or program director helping clients find housing, you’ve likely run into this exact scenario.
One of your clients found an apartment they can afford, has steady income from two part-time jobs, and is ready to move. The property still denied them. The reason: an eviction from three years ago that shows up on every screening report they run.
This is one of the most common walls case managers hit.
From here, most nonprofits reach for one of four tools: a personal cosigner, a housing voucher, an emergency grant, or a lease support service. Each one solves a different piece of the problem, and none of them work every time.
Compare Your Options at a Glance
| Option | Solves | Typical Timeline | Cost to Your Org | Best Fit |
|---|---|---|---|---|
| Personal cosigner | Approval barrier | Days, if someone qualifies | $0 | Client has a family member or friend with strong credit and income willing to take on liability |
| Housing voucher (e.g., Section 8) | Ongoing rent affordability | ~26 months national average; over 10 years in some major metros | $0 (funded by HUD/PHA) | Client needs long-term rent support, not just a one-time approval |
| Emergency grant | Either, but one-time | Days to weeks, if funds are available | Draws from your program budget | Client needs a deposit or first month’s rent covered, and your org has funds on hand |
| Lease support service (e.g., OneApp Greenlight) | Approval barrier | Days | $0 to the nonprofit, the property, or the client | Client can afford rent but keeps getting denied for credit, income formula, or rental history |
Option 1: Personal Cosigner
What it looks like: A parent, relative, or friend agrees to be financially responsible for the lease if your client falls behind.
- Pros: No cost to your organization. Can move as fast as the cosigner can sign paperwork.
- Cons: Many clients, including people restarting after a divorce, bankruptcy, or time without stable housing, don’t have someone who qualifies or is willing to take on that liability. The cosigner still needs to pass their own credit and income check, so this doesn’t help if nobody in your client’s circle meets the property’s bar.
Best if: Your client has a sibling or friend with strong, stable credit willing to co-sign. If not, this option is off the table before it starts.
Option 2: Housing Voucher
What it looks like: Your client applies for a Housing Choice Voucher (Section 8) or similar program through the local Public Housing Authority, which then pays the gap between what your client can afford and the actual rent.
- Pros: Ongoing monthly support, not just a one-time approval. Well established with property managers in most markets.
- Cons: Waitlists. Nationally, households wait an average of about 26 months for a voucher after applying, and some of the largest housing authorities report average waits of 8 years or more. Many local waitlists are closed entirely for years at a time. This option won’t help a client who needs to move in this month.
Best if: Your client has time to wait and needs ongoing rent support beyond just clearing this one denial. If they need to move in the next two weeks, a voucher alone won’t get them there.
Option 3: Emergency Grant or One-Time Fund
What it looks like: Your organization, or a partner funder, covers the deposit, application fee, or first month’s rent directly.
- Pros: Flexible. Can move in days if funds are on hand.
- Cons: Grant funds are limited and often run out mid-year. A grant covers cash, not the reason the property denied the application, so if the eviction on their record is the real issue, a grant alone might not change the property’s decision.
Best if: Your client’s only real barrier is upfront cash, and the property would approve them if the deposit were covered. If the eviction itself is the sticking point, a grant doesn’t solve it.
Option 4: Lease Support Service (OneApp Greenlight)
What it looks like: A service that works directly with the property manager to lower their risk of approving your client’s lease, rather than asking the property to simply take a chance.
How OneApp Greenlight specifically works:
- You refer the applicant. Your team identifies a client and refers them to OneApp.
- OneApp verifies eligibility. OneApp checks that they are home-ready and confirms placement availability.
- OneApp coordinates the placement. OneApp works with the property manager directly to get their lease approved.
- Ongoing support continues through the lease. If a default happens, OneApp backs the property, so your referral doesn’t put the relationship with that property at risk for the next client you refer.
- Pros: In Greenlight’s model, OneApp donates the standard lease support fee, so there’s no cost to your organization or to your client. Nationally, OneApp has helped house over 170,000 renters across a network of more than 1 million doors, and 9 out of 10 OneApp-supported renters complete their lease successfully.
- Cons: Only works at properties that participate in our growing, nationwide network. The good news is it’s easy — and free — for new properties to sign up. Have a property on your wishlist? Send them our way.
Best if: The property would approve your client if their eviction weren’t in the way, and they can otherwise afford the rent. This is the scenario Greenlight is built for: an applicant who’s ready, but a screening report says no.
Putting It Together for Your Client
All these options work, but not for every situation. A cosigner depends on whether your client has someone available. A voucher won’t help them for years. A grant might cover a deposit but won’t erase the eviction on their record. A lease support service addresses the specific reason they were denied: the eviction is weighing down their approval odds, not their ability to pay rent.
That’s the pattern worth checking for any client: ask whether the denial is about affording rent or getting approved for it. Vouchers and grants are strongest for affordability gaps. Cosigners and lease support services are strongest for approval gaps.
If your team keeps running into the same wall (a client who’s ready to move but keeps getting denied for something in their history), it may be worth adding a lease support option to the mix alongside the vouchers, grants, and cosigner networks you already use.
Frequently Asked Questions
Do we have to change our approach for every property we work with?
No. You can keep using cosigners, vouchers, and grants exactly as you do now. A lease support service is an additional tool for the specific case where the barrier is the approval decision itself.
Is OneApp Greenlight really free for our organization?
Yes. OneApp covers the standard flat fee for renters referred through Greenlight, so there’s no cost to your organization or your client.
What happens if a client we refer ends up defaulting on the lease?
OneApp backs the property in that situation, which is part of why participating properties are willing to approve referred applicants in the first place.
Can we use a lease support service alongside a voucher application?
Yes. They solve different problems. A client can be on a voucher waitlist for long-term rent support while also using a lease support service to clear an immediate approval barrier now.
Is there a minimum number of clients we need to refer to participate?
No minimum. You can start with one applicant, or refer your full caseload.