Triggered by his actions to make an independence political statement during the oath-taking ceremony, he faced a legal challenge from the government and was later stripped of his office by the court on 15 November 2016.

In the 2015 District Council election, Youngspiration fielded nine candidates, in which Leung himself stood in Kwun Lung against pro-Beijing Democratic Alliance for the Betterment and Progress of Hong Kong (DAB) Yeung Hoi-wing who succeeded veteran Ip Kwok-him.

He withdrew his nomination at the last moment and led his own ticket in New Territories East as a backup plan right before Hong Kong Indigenous' Edward Leung was disqualified by the Electoral Affairs Commission (EAC) for his pro-independence stance.

Speaking about the legal proceedings, Leung remarked on his preparedness and that "being declared bankrupt was minor compared to being jailed for life under Beijing’s new national security law for Hong Kong.

"[13] On 11 December 2020, a group of exiled Hong Kong citizens reported that Leung had left the city and fled to the United States on 30 November and that he was seeking asylum.

[14] Leung later confirmed this from Washington, D.C., and said he hoped to meet with advisers to President-elect Joe Biden to discuss sanctions on China over its "treatment of Hong Kong".