Grant was the son of Captain Grant of Easter Elchies. He studied law at the
University of Edinburgh and was admitted as an
advocate on 12 February 1712, and obtained a good practice. On 3 November 1732 he was raised to the bench with the title of Lord Elchies, in succession to
Sir John Maxwell of
Pollock; on 3 March 1737 he succeeded
Walter Pringle, Lord Newhall as a lord of justiciary. He died at his home,
Inch House, on the southern edge of
Edinburgh, on 27 July 1754. He is buried in the sealed south-west section of
Greyfriars Kirkyard in Edinburgh, in the area known as the
Covenanter's Prison. His family lie with him. ==Family==