 In 1746, he inherited the estates of a kinsman Sir Henry Fetherston but not Sir Henry's baronetcy which became extinct on his death.However, on 3 January 1747, Fetherstonhaugh was created a baronet of Featherstonehaugh in the County of Northumberland, in the Baronetage of Great Britain.On his marriage to Sarah Lethieullier, sister of Benjamin Lethieullier, in December 1746, he bought Uppark, Sussex and the manors of East And West Harting and in 1747 sold the family estate at Featherstone to James Wallace.