Diplomat and lecturer
From the summer of 1918, Panaretov was the only official diplomatic representative of a member country of the Triple Alliance who continued his work in the capital of the United States. Panaretov resigned his post in 1925. Rather than return to Bulgaria, Panaretov and his wife stayed in Washington so he could give lectures at George Washington University.
After Panaretov's death, the Bulgarian Academy of Sciences received a bequest from his estate of approximately 2.5 million lev. The Academy built a library and reading room that was named in his honor.
- Pundeff, Marin (1989). "Stefan Panaretov and Bulgarian-American Relations"". Bulgarian Historical Review 17 (3): 18–41. Archived from the original on May 4, 2004.