No Options, No Leverage. Here's How We Build Both.
Peninsula Commercial Real Estate Group provides four tenant representation services: lease negotiation, space search and site selection, financial and lease analysis, and owner-user representation. Corina Irvin, Founder & Principal, started the firm in 2019 and personally handles every lease. Her work covers more than $750 million in transactions and over 10 million square feet.
Four Services. One Process. One Principal.
Most brokers hand you a menu. Pick a service, pay a fee, move on.
Leases don't work that way. Rent, free months, and tenant improvement dollars all move together. Pull one and the rest shift. So Peninsula runs all four services as one process, and every step builds the same thing — real options.
Options are what put a landlord in competition. That's where leverage comes from. Nothing else creates it.
Corina runs all four herself.
The Assumption We Reject: That Your Renewal Offer Is Market Rate
A lease comes up. The landlord sends terms. The tenant pushes back a little, then signs.
You can't know whether those terms are market rate unless you're comparing live options in the same submarket. Not old comps. Not a number someone quoted you. Space you could actually move into.
Without that, you have nothing to push with. The landlord knows it.
Same goes for calling the broker whose sign is on the building. That broker's duty runs to the landlord. Peninsula takes no landlord listings at all.
How the Four Work Together
These aren't four products sitting on a shelf. They're four stages of the same fight, and each one arms the next.
-
Lease Negotiation
This is where the money is won or lost. Everything else exists to make this part go your way.
Rent is one line on a lease. Free months, tenant improvement dollars, annual increases, who pays for what, whether you can expand, whether you can leave — all of it is negotiable, and all of it is worth real money across a ten-year term.
Corina negotiates every one of those terms herself. Same principal at 2,000 square feet as at 100,000. Medical office leasing runs through here too, where build-out and patient flow drive the terms.
But nobody negotiates well empty-handed. Which is why the work starts well before this.
-
Space Search / Site Selection
A landlord offers his best terms when he thinks he might lose you. Not before.
So Corina tours buildings herself and shortlists the real contenders — across Los Angeles County →, Orange County →, San Diego →, and the Inland Empire →.
Four markets isn't a coverage claim. It's your options. A landlord in Irvine negotiates differently when Ontario is on your list.
Now you have choices. The next question is which one is actually the better deal — and it's rarely the one with the lowest rent.
-
Financial & Lease Analysis
Two spaces can quote the same rent and cost you very different money.
Operating expense pass-throughs. Base year resets. Annual bumps. Build-out you assumed was covered. We put the shortlist side by side and show what each one really costs across the full term.
That does two jobs. It tells you which space to chase. And it tells Corina which terms to fight for and which to trade — so nothing gets given away by accident.
For most companies, that's the process. For some, the numbers point somewhere else entirely.
-
Owner-User Representation
Sometimes the math says stop renting.
If you're going to occupy the building yourself, and you plan to be there a long time, buying can build equity instead of paying down someone else's. The analysis above is what surfaces that — you see the lease math and the purchase math side by side, before you commit to either.
Corina represents you on that purchase the same way she represents you on a lease. Same principal, same negotiation, start to finish.
This one has a boundary worth naming. Buying a building to occupy is in scope. Buying property to rent out to someone else isn't.
Proof This Works
- 15+ years of institutional commercial real estate experience
- $750M+ transacted, across 10M+ square feet
- Leases from 2,000 SF to 100,000+ SF
- Office, medical office, retail, industrial, and combined office/warehouse
- Zero landlord listings — every lease worked personally by a principal
-
Medical Sales Company | Office | Relocation
-
Engineering Company | Office & Warehouse | New Lease
-
Distribution Company | Industrial | Relocation
-
Healthcare Practice | Medical Office | New Lease
A professional services firm faced a steep renewal increase. Corina ran a market analysis, lined up real relocation alternatives, and used them as leverage. The firm got a favorable renewal and stayed where it wanted to be. More of these are on our Case Studies → page.
Who's Doing the Work
Corina spent 8+ years as a Director at Cushman & Wakefield in New York and Los Angeles, and 5+ years at Grubb & Ellis. She studied real estate finance at USC. She founded Peninsula in 2019 to bring that level of work to companies that were getting handed down to junior brokers.
She's a conference speaker for GlobeSt's Women of Influence program and an Honoree of the CREi Women of Influence Summit, 2022 through 2025. Her full story is on About Us →.
Cesar Olmedo said it plainly in his review: he wouldn't trust anyone else with his commercial real estate needs.
One more thing. Representation typically costs you nothing out of pocket — the fee is generally already in the lease, paid by the landlord, whether you bring a broker or not.
Who This Isn't For
-
If you want a broker who also lists space for landlords
We're not it. Peninsula represents tenants. That's the whole business.
-
If you think going straight to the listing broker saves you money
It doesn't. He already works for the landlord.
-
If you want a national team where your lease goes to whoever's free that week
That's not how we work.
-
If you want the fastest, cheapest signature with no touring and no comparing
We're not a fit.
-
Residential space, managing property you already own, investment sales
All outside what we do. Buying a building to occupy yourself is the exception. That one we handle.
But if you want one principal building your options and negotiating your terms, first tour to signed lease — that's exactly what these four services are.