L&L Infinite Enters New York Office Market With $245 Million Midtown East Deal
New York City | September 24, 2026: A newly launched real estate venture led by L&L Holding's David Levinson and former Silverstein Properties CEO Marty Burger has made its first office acquisition, buying a 42-story Midtown East tower for $245 million.
The purchase of 600 Third Avenue gives L&L Infinite its first New York office asset and adds another major transaction to a Midtown East market where investors are repositioning established office properties.
L&L Infinite Makes Its First Office Acquisition
L&L Infinite was launched this year by Levinson and Burger and has now entered the New York office market with the acquisition of 600 Third Avenue.
The 42-story building is located in Midtown East between East 39th and East 40th streets and was originally built in 1970 before undergoing renovation in 2015.
The property was approximately 92% to 93% leased at the time of the transaction, according to reports.
$245 Million Deal Comes With Strong Existing Occupancy
The building's leasing profile gives the new ownership an established tenant base rather than an entirely vacant repositioning opportunity.
Major tenants include L-3 Communications, which occupies nearly 59,000 square feet, along with law firms Polsinelli PC and Aaronson Rappaport Feinstein & Deutsch.
Aaronson Rappaport renewed its headquarters lease covering 42,764 square feet in 2025, while Polsinelli signed a 10-year lease in 2023 and expanded its footprint to 52,516 square feet.
Financing Adds Institutional Capital
The acquisition was financed with debt from Bain Capital.
Public reports differ on the exact financing amount, with Commercial Observer reporting a $185 million acquisition loan, while Bloomberg reported $215 million. Because the figures conflict, the financing amount should be treated as unconfirmed without the transaction's final loan documentation.
Newmark arranged the transaction, with a capital-markets team including Adam Spies and Joshua King.
Mack Real Estate Group Also Part of the Ownership
The transaction involved affiliates of Mack Real Estate Group, BLDG Management and BD Blakely alongside L&L Infinite.
Commercial Observer also reported that hotel investor Richard Born participated in the acquisition and owns roughly a quarter of the property, according to sources familiar with the deal.
The transaction therefore brings together several established real estate investors around a large Midtown East office asset.
Why 600 Third Avenue Matters for Midtown East
The acquisition comes as investors continue to evaluate New York office buildings based on occupancy, tenant quality, location and the potential to improve or reposition existing assets.
600 Third Avenue's Midtown East location, existing leasing base and prior renovation provide a different profile from heavily vacant office buildings that require major repositioning.
The sale also follows other office transactions and offerings along the Third Avenue corridor, including activity involving 711 Third Avenue and 605 Third Avenue.
What This Means for New York Office Investors
The deal provides another transaction benchmark for Midtown East office properties.
For investors evaluating similar buildings, important factors include:
- Existing occupancy
- Lease rollover schedule
- Tenant credit quality
- Remaining building capital requirements
- Renovation history
- Financing costs
- Midtown East location and accessibility
A high occupancy level can provide more immediate income visibility, but future performance will still depend on lease renewals, rents, operating expenses and broader office demand.
What Happens Next
With the acquisition completed, L&L Infinite now has its first office property and a 42-story Midtown East asset with a substantial existing tenant base.
The transaction will also put the new venture's strategy under greater focus as it evaluates whether 600 Third Avenue becomes the starting point for a broader New York office portfolio.