Key legal question
Whether the factual findings on the alleged sham marriage could be reviewed and corrected.
Extracted holding
The appellants did not meet the strict substantiation requirements for challenging the factual findings; the Court did not disturb the cantonal assessment.
Extracted reasoning
Under Art. 105 BGG, correction is possible only for manifestly inaccurate findings or serious procedural defects. The submission merely repeated prior arguments and did not show arbitrariness.