When Greenbaum, Rowe, Smith & Davis took on all but one lawyer from Farer Fersko earlier this year, it got more than the established environmental and real estate business they brought with them.

Now it has got itself sued by Farer Fersko’s former landlord, which seeks $2.3 million in rent for the remaining lease based on claims that Greenbaum Rowe conspired with Farer Fersko to help it get out of its lease.