Greg Kraut and Rod Kritsberg’s K Property Group and Boston-based Intercontinental Real Estate Corporation bought two adjoining commercial buildings in Soho for $46 million. The firms plan on renovating and combining the properties, according to sources. The deal for 30-32 Howard Street, which closed Tuesday, is K Property Group’s second major acquisition following its $31.5 million buy of the Sunshine Cinema with East End Capital last year.