One of his more ambitious projects was the draining and cultivating of a marshy piece of land south of Edinburgh.
[5] When his father died young, Sir Archibald became the heir to the baronetcy, which he succeeded to on 17 April 1771, upon the death of his grandfather.
[3] In 1778 Sir Archibald purchased Pinkie House in Musselburgh, Edinburgh, Scotland from the Marquess of Tweeddale and established it as the seat of the Hopes of Craighall.
[2][5] Like his grandfather father before him, Sir Archibald had a great interest in agriculture, and was devoted to improving his estate, establishing a considerable and profitable salt and coal works on them.
In 1757 he married Elizabeth Macdowell (d. 1778), the daughter of William Macdowell of Castle Semple, Renfrewshire, and had the following children:[2] In 1779,[12] after his first wife's death, Sir Archibald married Elizabeth Patoun (d. 1818), the daughter of John Patoun of Inveresk, and had the following children:[2]