Under his father's guidance, Leo also gained knowledge of finance, accounting, and the principles of running the family business.

[7] From 1899 onward, Leo lived in a large house on Zdrojowa Street, where his father gradually acquired an entire floor, which had previously served as a sanatorium.

[9] In 1899, at the age of 18, Leo was sent to London to continue his education at Linck Moeller, a company specializing in the timber trade.

[15] Leo and his older brother Siegfried assisted their father in managing the family business, eventually becoming co-owners.

[16] On the Shabbat of 1 August 1914, Leo reflected on the significance of the Tisha B'Av holiday and offered prayers for Emperor Wilhelm II in light of the outbreak of war.

In the absence of a rabbi in Połczyn-Zdrój, Leo led synagogue prayers, a responsibility previously fulfilled by his father and grandfather.

[17] Leo's cousin, Rudolf Levy, served as a driver in the 117th Infantry Division on the Western Front,[18] earning the Iron Cross for his actions during the battles in Artois.

[19] Leo began his military training at the barracks in Piła (German: Schneidemühle)[20] and was later deployed to a small town in northeastern France, near the front.

[21] In October 1916, the German army conducted a census of Jews (Judenzählung) to investigate allegations of Jewish unpatriotism and draft evasion.

He was awarded the Class II Military Merit Order with Crown and received a commendation letter from General Fasbender.

The firm had assets of approximately three million marks in the grain market, invested in bonds, real estate, and a small amount deposited in a bank in Szczecin.

When Adolf Hitler became Chancellor of the Reich in 1933, there were about half a million Jews living in Germany, and their wealth amounted to approximately twelve billion marks.

[44] In 1935, within two years of Hitler taking power, about twenty-five thousand German Jews left the country, including Leo's three daughters.

[44] Leo Levy endured the blows with dignity: the loss of the lime kilns in Grzmiąca,[45] the farm in Buślarki,[46] and later the takeover of sawmills in Kołacz, Trzebiec, and Świerczyna.

Despite warnings from his loved ones and his brother Siegfried's suggestion to stay in Switzerland, he returned to Połczyn-Zdrój on 7 November 1938, still considering Germany his homeland until the end.

[48] The day before Kristallnacht, Leo Levy dismissed one of his employees, an assistant accountant named Franz, who was a member of the Gestapo.

[49] On 10 November 1938, at 4 AM, just days after his return from Palestine,[50] Leo was murdered in his room at the house on Zdrojowa Street (Bismarck Prommenade) by the Sturmabteilung.

One version of the story says that Franz entered his apartment with two Sturmabteilung members, who shot him as soon as Levy opened the door.