He moved to London where he dealt with cases relating to trade and plantations[1] and included Benjamin Franklin among his clients.
He married Sarah Prescott,[3] Eyre was seeking a seat in parliament and in the mid 1760s became involved in a complicated and costly situation at Morpeth.
The corporation of Morpeth invited Eyre to oppose the Carlisle interest and he instituted legal proceedings at his own expense to address this.
At the 1768 general election a compromise was reached, which allowed Eyre to be returned with the Carlisle candidate Peter Beckford.
Although Byron died in June 1776 Eyre received little encouragement from the corporation and was getting into financial difficulties so he withdrew from the contest.