Jenoff, 68, formerly of Collingswood, testified that he and Paul Michael Daniels beat Carol Neulander to death with a lead pipe after Fred Neulander had promised to pay $30,000. She was 52.
Neulander is serving a life sentence in New Jersey State Prison after his conviction in 2002. An initial trial ended in a hung jury, and Jenoff wound up testifying twice.
Daniels, 40, formerly of Pennsauken, is to be set free in June 2015.
Jenoff and Daniels were sentenced to serve minimum terms of 10 years and maximum terms of 23 years each.
A person who answered the phone Saturday night at the Manhattan home of Benjamin Neulander, 38, the rabbi's youngest son, said that he declined to comment. Benjamin Neulander testified during the penalty phase of his father's capital murder trial, asking the jury to spare Fred Neulander's life.
Jenoff in 2009 swore in an affidavit that Neulander had nothing to do with the killing.
He later reversed himself. "I testified at two trials that Fred Neulander did hire me in fact to kill his wife and make it look like a robbery and that is, in fact, the truth," Jenoff said in a 2012 statement.
Neulander has maintained that Jenoff lied.
Neulander once led Cherry Hill's Congregation M'kor Shalom. Prosecutors said he hired Jenoff to kill Carol Neulander so he could marry a radio personality with whom he was having an affair.
Jenoff first confessed to killing Carol Neulander to Inquirer reporter Nancy Phillips in 1999.
Soon afterward, she arranged for him to meet with prosecutors. He repeated his confession to them, and then he was arrested.