BOSTON — A lawyer for a Pakistani man arrested on an immigration violation during the probe into the failed Times Square bombing says deporting him would pose an “extreme and unusual” hardship for his American wife.

An immigration judge today found Pir Khan, of Watertown, Mass., eligible for deportation because he entered the country illegally in 1991. Khan’s lawyer said he’ll argue that the woman he married in 2008 would face an unspecified hardship if Khan was deported.

Pir Khan is one of the three men arrested May 13 as authorities followed the money trail in their investigation of Faisal Shahzad, who’s accused of trying to set off a car bomb in New York City on May 1.

Federal authorities have said the men, including Mohammad Rahman, 34, of South Portland, Maine, may have given money to Shahzad through a network used by immigrants without knowing how the money would be used.

The Boston Immigration Court has scheduled a Wednesday hearing for Rahman via teleconference from the jail in Portland, where he has been held in federal custody since his arrest.

Rahman is also married to an American. Immigration law experts in Portland have said his marriage gives Rahman a good argument for obtaining legal status, as long as he does not face any criminal charges in connection with the car bomb probe.