[1] He succeeded to the baronetcy in 1730 upon the death of his elder brother Sir Alexander Lauder, 4th Baronet.
During the latter uprising a Warrant was issued at Holyroodhouse dated 18 October 1745, in the name of Charles, Prince of Wales, "Regent of Scotland, England, France, and Ireland" to George Gordon of Beldorny, to proceed to Sir Andrew Lauder's manor at Fountainhall requisitioning his horses ("including his own bay gelding") and pistols and any other arms.
[3] In 1731 he married a future heiress, Isabel (1716–1758) daughter of Sir William Leslie Dick (d.1757) 3rd feudal baron of Grange, Edinburgh, who was in a direct descent from the Royal House of Plantagenet.
By his wife, Isabel, Sir Andrew Lauder had eighteen children: 11 boys and 7 girls.
Of his sons, William (1739–1763) was an officer in the Honourable East India Company's Bengal Army, dying in Calcutta.