Five tenants have leased nearly 50,000 square feet at 600 Lexington, the building’s landlord, SL Green, announced on Tuesday.

F5 Networks, an information technology company, signed a 10-year deal for 12,487 square feet, the roughly 300,000 square foot building’s entire fifth floor. Robert Stella, a broker at Cresa Partners represented F5 Networks in the deal.

Executive search company Herbert Mines Associates signed a 10-year deal for 10,879 square feet, which comprised the entire second floor.

CBRE brokers Clyde Reetz and Yuan Tang, repped the firm in the deal.

LibreMax Capital LLC, an investment company, did a seven-year lease for 8,875 square feet, the entire 19th floor. Cynthia Wasserberger and Ryan Masiello, executives at Jones Lang LaSalle, handled the deal for LibreMax.

Law firm Caplin & Drysdale completed a 10-year lease for 8,875 square feet, the entire 21st floor. James Millard and Jonathan Schifrin, two executives with Transwestern Commercial Services, repped the firm.

Lastly, Intermediate Capital Group, a specialist investment firm and asset manager, signed a 10-year for 6,780 square feet, the entire 24th floor. CBRE brokers David Hollander and Sam Sieller represented Capital Group.

A brokerage team from Jones Lang LaSalle led by executives Paul Glickman, Frank Doyle, Mitti Liebersohn, Alexander Chudnoff, Diana Biasotti and Ben Bass handle deals at the property for SL Green.

SL Green’s director of leasing, Steve Durels, credited renovation work the company has completed at the building for the string of deals.

“We completed a lobby renovation together with upgrades to the entrance plaza, corridors and bathrooms and implemented an aggressive marketing program to re-introduce the building to the brokerage community,” Mr. Durels said in a statement. “The building upgrades and location... is attracting tenants from Park Avenue and upper Madison Avenue.”

Daniel Geiger is reachable at dgeiger@observer.com

Walker & Dunlop’s announcement earlier in June that it had entered into a definitive agreement to acquire CWCapital for $220 million in cash and stock means that it will be looking to break into New York’s multifamily lending market in a big way.

The Commercial Observer sat down with W&D chairman, president and chief executive Willy Walker to learn additional details about this game changer for New York lending. His message? W&D plans to compete big.

The deal, which is pending regulatory and stockholder approvals, is expected to close in three to four months, but it came together surprisingly fast. “It took us exactly 30 days from first discussion to signing up the deal,” Mr. Walker said. “We moved very, very quickly. And I think Fortress, honestly, was… I would think that they kind of walked into it saying, ‘Eh, great, this is going to be an easy negotiation. These guys don’t do this stuff every single day’ and we put together a phenomenal deal.”

Mr. Walker said that it was too early to identify any specific targets in the New York area for its multifamily lending. “This market has got so much potential to it, but it’s a rough and tumble market,” he said. “It’s a very difficult market to break into. You’ve got to have a really good team with a really good brand and great relationships—that’s what we have all across the country today and what we’re augmenting with the CW acquisition and what we’ll continue to build.”

He added that Wells Fargo and CBRE will be the revamped company’s main competition for chunks of New York’s multifamily lending activity. “New York Community Bank somewhat on the smaller loans,” he said of the competitive landscape. “But really on the big assets that we typically would lend on it’s pretty much CBRE and Wells Fargo.” He added that Wells Fargo’s Alan Wiener “knows a lot of the property owners and that CBRE does a ton of business with Freddie, though not with Fannie.”

Structurally, the plan is to first combine CWCapital’s and W&D’s existing teams here in New York. “Then we’ll look at whatever additions we think we should or shouldn’t make,” he said. The fate of Michael Berman, president and chief executive of CWCapital, is as yet undecided. Mr. Walker told The Commercial Observer in an earlier interview that he and Mr. Berman were in talks about what his role at Walker & Dunlop, post acquisition, would be.

Carl Gaines is reachable at cgaines@observer.com