Vallejos v Commissioner of Registration
Vallejos and Daniel Domingo appealed their cases to the Court of Final Appeal, and were respectively assigned the case numbers FACV 19 and 20/2012. They would be represented before the CFA by Michael Fordham; David Pannick continued to represent the Government. Chief Justice Geoffrey Ma rejected a further application for joinder by eight-year-old Liang Wing-ki, the Hong Kong-born daughter of mainland parents, whose next friend, mother Li Yinxian, filed suit on her behalf. Philip Dykes, for the applicant, argued that because Vallejos and Domingo's case would touch on issues of interpretation of the Basic Law under Article 158, Liang's interests would also be affected. In rejecting Liang's application, Ma stated: "We feel that the points you seem to argue are adequately covered and will be adequately covered". Liang and other Hong Kong-born children like her were ruled to be entitled to the right of abode in Hong Kong in the 2001 case "Director of Immigration v. Chong Fung Yuen".
Vallejos v Commissioner of Registration
In October 2011, the government filed an appeal from Lam's CFI judgment in the Court of Appeal, and was assigned the case number CACV 204/2011. The government's submission stated that Lam erred in finding that foreign domestic helpers' residence in Hong Kong could not be regarded as "out of the ordinary", in finding that the government's right to apply immigration control under Basic Law Article 154 could not be applied to Vallejos, and in failing to consider extrinsic materials from both prior to and subsequent to the publication of the Basic Law in 1990. High Court Chief Judge Andrew Cheung and High Court vice-presidents Robert Tang and Frank Stock heard the government's appeal on 21–23 February 2012. David Pannick continued to represent the government. In the first day of the hearing, Pannick argued that "there is no undermining of the rule of law if the legislature enjoys a certain margin of discretion". Pannick also pointed to the previous British administration's treatment of Vietnamese refugees in Hong Kong in the 1980s as a precedent. He further brought up examples from UK law, such as the fact that time spent there on a student visa was not regarded as "ordinary residence" and did not count towards the time required to obtain indefinite leave to remain.