At a glance
Firm: Legion Investment Group Founder & principal: Victor Sigoura (Founder & CEO) — a former real-estate attorney, previously at Naftali Group Founded: ~2015–2016 (New York City) Headquarters: 75 Rockefeller Plaza, New York, NY Focus: Boutique, ground-up ultra-luxury condominiums on prime Manhattan blocks — high price-per-foot, architecturally distinguished, built from multi-parcel and air-rights assemblages Recurring design partners: Steven Harris Architects; Studio Sofield; Thomas Juul-Hansen; Hill West Architects (architect of record) Frequent capital partner: Nahla Capital (Genghis Hadi) — the co-developer at 1122 Madison Avenue Portfolio scale: A small, high-value pipeline of four major Manhattan condominiums; the firm reports several billion dollars in aggregate development value across its principals' careers Signature reputation: An upstart luxury developer that has repeatedly sold out prime-block condominiums at top-of-market prices — including a Carnegie Hill penthouse contracted at roughly $89.5 million, reported as the highest-priced Upper East Side condo ever to go to contract — with a clean building-quality record to date Source: The Roebling Team at Compass — verified against public records, court filings, and published reporting. July 2026.
Who Legion Investment Group is
Legion Investment Group is the boutique luxury-condominium developer founded by Victor Sigoura. The firm's identity and its attribution to the two buildings profiled here are firmly established in the public record — the firm's own materials, a first-person interview with Sigoura, and independent trade reporting all name Legion Investment Group as the developer of both 109 East 79th Street and 1122 Madison Avenue, with no meaningful ambiguity.
Sigoura's background shapes the firm. A 2001 law-school graduate, he began as a litigator and real-estate attorney — early in his career he worked on the landmark Plaza Hotel acquisition and conversion — and later spent time at Naftali Group, one of the Upper East Side's most successful modern condo developers, before going out on his own in the mid-2010s. Legion inherited that playbook: build small, build on the best blocks, hire top designers, and price to the top of the corridor. For a buyer, the through-line is a developer that concentrates its bets — a few buildings, each aimed squarely at the peak of its market.
What they build
Legion's signature is the ground-up, prime-block ultra-luxury condominium, typically assembled from several adjacent parcels and air rights and then designed to compete with — and price against — the pre-war cooperatives that dominate its corridors. The firm favors architecturally serious envelopes and marquee design teams: Steven Harris Architects at 109 East 79th, Studio Sofield at 1122 Madison, Thomas Juul-Hansen at 550 West 21st in West Chelsea. The buildings are boutique — measured in dozens of residences, not hundreds — which concentrates value and supports the very high per-square-foot pricing Legion targets.
The firm builds both solo and in joint venture with capital partners, most notably Nahla Capital. For a buyer, the sponsorship structure is worth confirming building by building: 109 East 79th was developed by Legion alone, while 1122 Madison is a Legion/Nahla partnership.
Buildings by Legion Investment Group
Legion Investment Group projects already profiled on this site:
- 109 East 79th Street — Steven Harris Architects' first ground-up Upper East Side condominium, a 31-residence Carnegie Hill building conceived as a modern homage to the Candela/Carpenter pre-war tradition, with interiors by Rees Roberts + Partners. Developed by Legion solo
- 1122 Madison Avenue — the Studio Sofield-designed limestone condominium at the corner of Madison and East 84th (Hill West as architect of record), a 26-residence top-of-market building. Co-developed with Nahla Capital
Both attributions are verified. At 1122 Madison, the co-developer role of Nahla Capital — the real-estate private-equity firm founded by Genghis Hadi — is confirmed in the same reporting that documents the building's record-setting penthouse contract; the two firms' principals announced that deal jointly.
Other Legion work includes 550 West 21st Street in West Chelsea (a Thomas Juul-Hansen building the firm acquired out of bankruptcy and completed) and 38 Gramercy Park East (a ground-up Gramercy Park condominium in early construction, in joint venture with Gindi Capital).
Track record
By the measure that matters most — does the product sell, and at what price — Legion's record is strong. 109 East 79th Street launched sales in late 2020 and effectively sold out before its first units were delivered, at pricing reported a little above $4,000 per square foot; the building has since been turned over to its condominium board. 1122 Madison Avenue, which opened its sales office in early 2026, moved the large majority of its 26 residences into contract within its first months, at an average reported well above $5,000 per square foot.
The headline is the top of that building. A duplex penthouse at 1122 Madison — roughly 9,300 square feet of interior space plus outdoor terraces, with Central Park views — went into contract in early 2026 at a reported ~$89.5 million, described in published reporting as the highest total price and highest price per square foot for any Upper East Side condominium ever to go to contract. (Some reporting characterizes the contract signing as clustered in early 2026; a buyer needn't fix a precise month.) For a developer of Legion's size, that is a genuine market signal: it points to real demand at the very top of the corridor and to a sponsor whose pricing the market has repeatedly validated.
Reputation and what a buyer should know
On build quality, Legion's record is clean. Across 109 East 79th Street and 1122 Madison Avenue, we found no condo-board construction-defect litigation, no defect complaints against a finished building, and no substantive building-safety reporting tied to the developer. 109 East 79th was completed and formally turned over to its condominium board without reported defect claims, and press coverage of the firm is uniformly positive on the product.
The disputes and complexities that appear in Legion's record are transactional, not quality-related — the ordinary work of assembling prime sites: buying out air rights, relocating a rent-stabilized tenant, acquiring a stalled project (550 West 21st) out of bankruptcy. These are commercial and acquisition matters, not construction defects, and they do not bear on the physical condition of the residences.
One diligence note, stated plainly: our clean-record conclusion rests on the absence of any adverse litigation or defect reporting in the public and trade record — a strong signal for a firm this closely covered — rather than on a line-by-line municipal violation pull for each address. As with any new-construction purchase, a buyer's counsel should still complete standard building-level checks: read the offering plan, confirm lien and title status, pull the current building-violation record for the specific address, and review the warranty and punch list. There is no sponsor-specific red flag here — the ordinary diligence is simply the ordinary diligence.
The Roebling Team on Legion Investment Group buildings
We publish developer profiles because a buyer choosing a new-construction or recently-converted condominium is, in part, betting on the developer — its quality, its staying power, and its record when things go wrong. The Roebling Team at Compass tracks the sponsors behind Manhattan's luxury inventory building by building, and we bring that context to every new-development transaction: what the developer has built, how those buildings have held value, and what to verify before you sign.
If you're evaluating a Legion building — 109 East 79th, 1122 Madison, or another — or weighing it against another sponsor's product, a 30-minute consultation is the right starting point.
Corey Cohen, Principal · The Roebling Team at Compass 646.939.7375 · c.cohen@compass.com
This developer profile reflects publicly available information — including NYC public records, court filings, and published reporting — and The Roebling Team's transaction experience. It is provided for research purposes and is not legal advice; nothing here alleges wrongdoing or building defects beyond what the cited public record supports. The Roebling Team at Compass does not represent Legion Investment Group. © 2026 The Roebling Team at Compass.