Scott lived in the shadow of his childless elder brothers until his mid-thirties, when he unexpectedly inherited the Smeeth and Nettlestead estates. He entered adulthood with few prospects, as his father left him an annuity of just £30, but at the beginning of 1601 he married a local heiress, with whose guardian he fell out over money.
Scott served as sheriff of Kent in 1619-20. In 1622 he was summoned before the Privy Council for failing to contribute to the benevolence for the defence of the Palatinate, along with his near neighbours Sir Norton Knatchbull* and Sir Peter Heyman*, and was consequently persuaded to donate £40.
Scott played little recorded part in the 1626 Parliament, never speaking and being named to just nine committees. Four of his appointments reflected the anxieties of a member of the godly about the state of religion. As well as the general committee on religion (10 Feb.), he was named to consider bills for the removal of scandalous and unworthy ministers (15 Feb.), for easing the terms of subscription required for holders of livings (6 May) and for the genuine conformity of former recusants (8 May). He was also instructed to attend the conference with the Lords (4 Mar.) about the message sent to the duke of Buckingham demanding to know why the latter had detained the St. Peter of Le Havre after it had been discharged. His other committees included one to draft an arms bill (13 Mar.), which as a longstanding captain in the militia he was well qualified to consider, and another concerning a Kentish estate bill promoted by Sir Henry Neville II* (17 March).
Scott was appointed a commissioner for the Forced Loan in November 1626. He presumably refused to serve as he was shortly afterwards displaced from the bench and his name was omitted from the new Loan commission issued in February 1627.
The navigation bill was probably Scott’s main preoccupation of the Parliament, as he was personally named to only four committees. As in 1626, most of these concerned religious matters: to prevent Catholics from sending their children overseas for their education (21 Mar.), to strengthen the recusancy laws (23 Apr.) and to improve the maintenance of the ministry (7 May). His last appointment concerned the patent of the Muscovy Company (17 May).
Buckingham’s assassination paved the way for Scott’s restoration to the county bench, to which he was readmitted in December 1628. However, sometime between late February and mid-July 1636 he was again struck off, perhaps having refused to pay Ship Money. By 1631 he was serving as steward in the archbishop of Canterbury’s household. He did not seek re-election to either the Short or Long Parliament, although he was kept informed of events at Westminster by his daughter-in-law. In January 1642 she wrote that a Member of the Commons had proposed to appoint him lord lieutenant of Kent, but in the event Parliament nominated the 2nd earl of Leicester (Sir Robert Sidney*). Four months later Scott’s name headed the signatories to the petition submitted by Kent’s radicals calling for rapid godly reformation.
