Key legal question
Whether a foreclosure sale in mortgage enforcement triggers real property capital gains tax liability under § 49 Abs. 3 StG.
Extracted holding
Yes. The statute expressly limits the tax exemption to bankruptcy and composition with assignment; a foreclosure sale in special enforcement remains taxable.
Extracted reasoning
The court distinguished special enforcement from general enforcement and held that the text and legislative intent do not justify extending the exemption by analogy.