He taught school in Jamaica, Queens while studying law, and attained admission to the bar in 1820.

Blatchford practiced law in Manhattan and Auburn, New York with fellow Union College student William H. Seward and other partners, and became a highly skilled corporation and banking attorney as one of the founders of the firm now known as Cravath, Swaine & Moore.
 In 1826 he was appointed U.S. counsel and agent for the Bank of England, and he served in the same capacity for the Second Bank of the United States.
 When the charter for the Bank of the United States expired in 1836, Blatchford was responsible for concluding all pending business and resolving all remaining obligations between the two institutions.

Blatchford was also a successful investor and businessman, and his holdings included New York City real estate, as well as land development ventures as far away as Florida.
 He also owned shares of stock in several companies, and by 1845, his net worth was over $200,000 (equivalent to $5.3 million in 2018).
 He was a longtime friend of Daniel Webster, and was one of the executors of Webster's will.

Blatchford served on the boards of directors of several New York railroads that were subsequently consolidated to form the New York Central, including the Saratoga and Whitehall.
 After the mergers, he was appointed as a vice president and director of the consolidated company.
 In addition, he was a director of other corporations, including the North American Fire Insurance Company.

A Whig Party activist, Blatchford was affiliated with Seward in politics and was elected to the New York State Assembly in 1855.
 He served one term (the 78th session), and was chosen to act as Speaker pro tempore during the absence of Speaker DeWitt Clinton Littlejohn.
 Blatchford was also a trustee of Bellevue Hospital Medical College.
He taught school in Jamaica, Queens while studying law, and attained admission to the bar in 1820.
Blatchford practiced law in Manhattan and Auburn, New York with fellow Union College student William H. Seward and other partners, and became a highly skilled corporation and banking attorney as one of the founders of the firm now known as Cravath, Swaine & Moore.  In 1826 he was appointed U.S. counsel and agent for the Bank of England, and he served in the same capacity for the Second Bank of the United States.  When the charter for the Bank of the United States expired in 1836, Blatchford was responsible for concluding all pending business and resolving all remaining obligations between the two institutions.
Blatchford was also a successful investor and businessman, and his holdings included New York City real estate, as well as land development ventures as far away as Florida.  He also owned shares of stock in several companies, and by 1845, his net worth was over $200,000 (equivalent to $5.3 million in 2018).  He was a longtime friend of Daniel Webster, and was one of the executors of Webster's will.
Blatchford served on the boards of directors of several New York railroads that were subsequently consolidated to form the New York Central, including the Saratoga and Whitehall.  After the mergers, he was appointed as a vice president and director of the consolidated company.  In addition, he was a director of other corporations, including the North American Fire Insurance Company.
A Whig Party activist, Blatchford was affiliated with Seward in politics and was elected to the New York State Assembly in 1855.  He served one term (the 78th session), and was chosen to act as Speaker pro tempore during the absence of Speaker DeWitt Clinton Littlejohn.  Blatchford was also a trustee of Bellevue Hospital Medical College.
Richard M. Blatchford (attorney)