President Joe Biden’s brother Frank promoted his relationship to the commander-in-chief in an Inauguration Day advertisement for the law firm he advises.

Frank Biden is a non-attorney senior advisor for the Berman Law Group. The firm is based in Boca Raton, Florida. Its ad featuring Frank Biden was printed in the Jan. 20 edition of the Daily Business Review, which is also based in Florida.

The ad focuses on a lawsuit the firm is leading against a group of Florida sugar cane companies. It features a photo of Frank Biden, along with quotes regarding his relationship with the incoming president and the family name.

In an email to CNBC, Frank Biden said he has not used his brother’s name to gain clients.