L&L Infinite Purchased Manhattan Office Tower

The joint venture acquired the 42-story building at 600 Third Avenue for $245 million.

Updated on Oct. 6, 2026 in Commercial

A low-angle exterior shot of a modern skyscraper facade in Manhattan, capturing the vertical rhythm of glass and steel in bright daylight.
L&L Infinite acquired the 42-story office building at 600 Third Avenue in Manhattan from BlackRock for $245 million in a deal finalized this week. AI Illustration. Upload story photo >

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L&L Infinite has acquired the 42-story office tower located at 600 Third Avenue in Manhattan for $245 million. The firm utilized a right of first offer to complete the purchase from previous partner BlackRock.

Why it matters

BlackRock moved to sell the asset to raise capital for its fund following recent redemptions. The deal provides L&L Infinite with a stabilized property that is currently 92 percent leased.

The office tower features 13.5-foot ceiling heights and maintains an average in-place rent of $68 per square foot. The building currently reports a 92 percent occupancy rate.

The players

L&L Infinite

This is a commercial real estate joint venture formed in early 2026 by executives Marty Burger and David Levinson.

BlackRock

The global investment management firm previously held a 20-year partnership in the 600 Third Avenue office building.

Bain Capital

This private investment firm provided the necessary financing for the acquisition of the Manhattan office tower.

Marty Burger

He is a co-founder of the L&L Infinite joint venture and a prominent figure in the New York City commercial real estate sector.

David Levinson

He is a co-founder of the L&L Infinite joint venture and an experienced leader in the commercial property market.

The details

L&L Infinite, a joint venture between Marty Burger and David Levinson, secured financing from Bain Capital after reviewing various CMBS and bank balance sheet options. The acquisition follows a 20-year period during which BlackRock maintained a partnership in the property.

Timeline

  1. Marty Burger and David Levinson formed L&L Infinite in January 2026.

  2. The 10-year interest rate reached 5.3 percent on September 30, 2026.

  3. The acquisition of 600 Third Avenue occurred in late September 2026.

Roadmap

This acquisition signals a strategic move by new joint ventures to capitalize on office assets during a period of market instability. The deal reflects the ongoing pressure on institutional owners to rebalance portfolios by divesting from major commercial office buildings.

Tenants currently leasing space in the building are unlikely to see immediate changes to their operations given the 92 percent occupancy rate. However, the ownership change may eventually influence future lease renewal negotiations and building management service standards.

The takeaway

Commercial real estate investors are increasingly prioritizing properties with high occupancy levels to navigate current interest rate volatility. Prospective buyers continue to evaluate multiple financing vehicles to maintain portfolio liquidity in high-cost urban markets.

Further reading

For more information on the local property market, visit New York City Commercial.

Source note: This article includes information reported by The Real Deal New York.

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