Key legal question
Whether the appeal against refusal to renew the residence permit was sufficiently reasoned under Art. 42 BGG.
Extracted holding
No. The appeal did not engage with the key finding of abuse of rights and therefore failed the minimum reasoning requirements.
Extracted reasoning
The cantonal authorities relied on abuse of rights, not on a sham marriage. The appellant only insisted that there was no sham marriage and did not address the abuse-of-rights reasoning.