Over 25 years of New York property expertise, available by the project or for the long term.
How we help
From a single issue to an entire function, our team brings deep knowledge of New York buildings, agencies and vendors.
Stay ahead of city deadlines instead of paying fines for missing them.
Call us when: a notice arrives, or you're not sure what's due this year.
Everything from a roof replacement to a lobby refresh, managed from start to finish, so you pay a fair price for work done right.
Call us when: you have a project coming up and no one to run it.
A clear look at how your building is really running, and a plan to keep it in shape.
Call us when: things keep breaking, or you can't be there to check.
We're licensed brokers, so leasing is handled in-house — residential and commercial, from first showing to signed lease.
Call us when: a unit has been vacant longer than it should be.
Simple, affordable tools that save you hours — set up for a building your size, not a 5,000-unit portfolio.
Call us when: admin work is eating your week.
If it's part of owning or running a New York building, we've likely dealt with it. Tell us what's going on and we'll tell you honestly whether we can help.
Book a callNot just advice
You can't be everywhere. We're based in Manhattan and do the in-person work that usually falls through the cracks.
Progress checks and quality control while the work happens, not after the invoice arrives.
We meet contractors at the building, agree on the scope in person and hold them to it.
Regular visits with your super and building staff to check standards, routines and follow-through.
About Keyholder
We've spent more than 25 years managing real estate in New York City, and we've handled every issue on this page ourselves. We've worked alongside supers, built a deep bench of trusted vendors and partnered with some of the top real estate attorneys in Manhattan and the surrounding area.
Now we bring that experience to owners and managers who need it — for a project, a season or as long as it helps.
Every type of residential building
Rent-controlled, rent-stabilized and free-market.
Commercial tenants of every size
From mom-and-pop shops to national brands.
Renovations, large and small
From architect-reviewed projects to apartment turnovers.
Licensed real estate brokers
We manage our own leasing, start to finish.
Local law and AI specialists
Compliance deadlines and modern tools, handled.
Energy and cost savings
Con Edison programs and savings across the building.
Why Keyholder
Most savings come from doing things right the first time — with experienced people who bill only for the help you actually need. Here's how that compares with hiring in-house or signing on with a large firm.
| Keyholder | Hire someone full-time | Large management firm | |
|---|---|---|---|
| What you pay for | Only the help you need, when you need it | A salary all year, busy or not | A full package, used or not |
| Expertise | 25+ years in NYC, with specialists in each area | One person's experience | Deep, but spread across hundreds of buildings |
| Time to get started | As soon as we agree on the scope | Weeks or months to hire and train | A full onboarding and transition |
| Attention to smaller buildings | Our core focus | Depends on the hire | Often low priority |
How it works
One project, a few busy months or an ongoing role — sized to your building and your budget.
1
A short call about your building and what's on your plate.
2
A written scope with what we'll do, how long it takes and what it costs.
3
In the office and at the building, with regular updates to you.
Where to start
If any of these are on your list right now, that's exactly where we come in.
Book a callWe also offer full-service management. Let's talk about whether it's the right fit for your building.
Book a call
A few details are enough. We'll get back to you to set up a short call — no obligation.
Effective November 2026. Keyholder Corp respects your privacy. This policy explains how we handle the information you share with us through this website.
When you use our contact form, email or call us, we collect the details you choose to share — such as your name, email or phone number, your role, your building size and your message.
Only to respond to your inquiry, discuss our services and follow up with you. We don't sell, rent or trade your information.
Service providers that help us run this website and receive form submissions, and only as needed to provide those services — or where required by law.
This site doesn't use advertising cookies. If we use basic analytics to understand how the site is used, it does not identify you personally.
As long as needed to respond to you and maintain our business records, then we delete it.
You can ask us to see, correct or delete the information you've given us at any time by emailing info@keyholdercorp.com.
Questions about this policy? Contact Keyholder Corp at info@keyholdercorp.com, (347) 761-1103, or 305A West 19th Street, New York, NY 10011.