Walter, a single taxpayer, purchased a limited partnership interest in a tax shelter in 1985. He also acquired a rental house in 2015, which he actively manages. During 2015, Walter's share of the partnership's losses was $30,000, and his rental house generated $20,000 in losses. Walter's modified adjusted gross income before passive losses is $125,000.Calculate the amount of Walter's allowable deduction for the partnership losses for 2015. $