When, in 1721, Sir Alexander came of age, he was obliged to find means to pay the provision payable to his brother George and to his sisters, amounting altogether to 16,000 merks, while about the same amount of his father's debts was still unpaid. In 1729 he purchased Cruive House and the Ferry of Skudale. In 1735 he bought Bishop-Kinkell; in 1742 Loggie-Riach and, in 1743, Kenlochewe, which latter property was considered equal in value to Glasletter of Kintail, sold about the same time. About 1730 he redeemed Davochcairn and Ardnagrask from the widow of his uncle William, and Davochpollo from the widow and son James of his grand-uncle, Colin, I. of Mountgerald. In 1752 he executed an entail of all his estates; but leaving debts at his death, amounting to L2679 13s 10d more than his personal estate could meet, Davochcairn, Davochpollo, and Ardnagrask, had eventually to be sold to make up the deficiency.
In 1738 he pulled down the old family residence of Stankhouse, or "Tigh Dige," at Gairloch, which stood in a low, marshy, damp situation, surrounded by the moat from which it derived its name, and built the present house on an elevated plateau, surrounded by magnificent woods and towering hills, with a southern front elevation - altogether one of the most beautiful and best sheltered situations in the Highlands; and he very appropriately called it Flowerdale. He greatly improved his property, and was in all respects a careful and good man of business. He kept out of the Rising of 1745, and afterwards when John Mackenzie of Meddat applied to him for aid in favour of Lord Macleod, son of the Earl of Cromarty, who took so prominent a part in it, and was afterwards in very tightened circumstances, Sir Alexander replied in a letter dated at Gairloch, 17th May, 1749, in the following somewhat unsympathetic terms:
Sir,—I am favoured with your letter, and am extreamly sory Lord Cromartie's circumstances should obliege him to sollicit the aide of small gentlemen. I much raither he hade dyed sword in hand even where he was ingag'd then be necessitate to act such a pairt I have the honour to be nearly related to him, and to have been his companion, but will not supply him at this time, for which I believe I can give you the best reason in the world, and the only one possible for me to give, and that is that I cannot. [Fraser's "Earls of Cromartie," vol. ii., p. 230.]
The reason stated in this letter may possibly be the true one; but it is more likely that Sir Alexander had no sympathy whatever with the cause which brought his kinsman into such an unfortunate position, and that he would not, on that account, lend him any assistance.
Some of his leases, preserved in the Gairloch charter chest, contain some very curious clauses, many of which would now be described as tyrannical and cruel, but the Laird and his tenants understood each other, and they got on remarkably well. The tenants were bound to sell him all their marketable cattle "at reasonable rates," and to deliver to him at current prices all the cod and ling caught by them; and, in some cases, were bound to keep one or more boats, with a sufficient number of men as sub-tenants, for the prosecution of the cod and ling fishings. He kept his own curer, cured the fish, and sold it at 12s 6d per cwt. delivered in June at Gairloch, with credit until the following Martinmas, to Mr Dunbar, merchant, with whom he made a contract binding himself, for several years, to deliver, at the price named, all the cod caught in Gairloch. [See copy of lease granted by him, in 1760, of the half of North Erradale, to one of the author's ancestors, printed at length under the family of "Alastair Cam.">[
Sir Alexander married, in 1730, Janet, daughter of Sir Roderick
Mackenzie, second Baronet and V. of Scatwell, with issue -
1. Alexander, his heir and successor.
2. Kenneth, who died in infancy.
3. Roderick, a captain in the army, who was killed at Quebec before he attained majority.
4. William, a writer, who died unmarried.