In April 1500 Mackenzie obtained a precept of clare constat (a feudal superior's confirmation of his vassal's entitlement to an estate) for Kintail and other lands from
James Stewart, Duke of Ross. In 1504 he asserted an hereditary right to Meyne, Escadell [Eskadale] and other lands in
Ross-shire. He is recorded also as having been a tenant of Kynellane [Kinellan], Scatell Mekill [Greater Scatwell], Scatell Beg [Lesser Scatwell], Kilquilladrum and Mylne of Coulle [mill of Coul]. On 25 February 1508/9 he had a charter of Kintail,
Eilean Donan and other lands, incorporated in a free barony of Eilean Donan. There is plentiful documentary evidence of Mackenzie's success over the years in expanding his estates. In 1526 he was
infeft with his wife in the lands of
Fothirte, Strathgarvy and Killyn [Killin]. He had charters of Killequhildrum on 25 September 1528, of Fotherty [Fodderty] on 25 May 1532, of Kinlochbanquhorie on 30 August 1538, of Laggan on 12 December 1540, of
Meklebrawane on 15 September 1541, of Monare on 22 October 1542 and of Lochbryne (with his wife, in
excambion for Fodderty) in 1543. In 1544 he acquired half of Culteleod [Castle Leod] and Drynie from Magnus Mowat and Patrick Mowat of Bugholly and in January 1547 he acquired a wadset of the other half of those lands from Denoon of Davidston. In 1556 he acquired the heritage of Culteleod and Drynie from Denoon, which was confirmed to him by
Queen Mary on 13 July 1556. A number of grants were also made during his life to his son and heir, Kenneth. ==Public career==