One of the key changes in the House GOP tax bill was to implement a cap on home interest deductions to the first $500,000 worth of mortgage debt and eliminate interest deductions from second homes. Of course, given active opposition from some very powerful realtor and homebuilder lobbying groups, it's unclear whether the changes will find their way into the final tax bill. But, at least according to Bloomberg, New York's "millionaire, billionaire, private jet owning" hedge fund managers aren't waiting around to find out and are already taking steps to game any potential tax chang