A federal judge in Massachusetts granted a couple’s motion seeking pro hac vice admission of a New York attorney—who also happens to be their son-in-law—despite JPMorgan Chase Bank’s objection on the grounds that the attorney will likely be called as a witness for his familial role leading up to the litigation.

An elderly couple, Peter and Yoon Doelger, who are investors, filed a nine-count civil action in the U.S. District Court for the District of Massachusetts, against JPMorgan Chase Bank (JPMC) and Chickasaw Capital Management, claiming they received poor financial advice that allegedly resulted in the loss of approximately $20 million.