Investors & landlords

@AmyC 

The problem with this answer is that TurboTax forces you to have something in rows 4b1b and 4b1c even if row 4b1a is 0.  The smart check will fail otherwise.  Does this mean we actually need to go searching our brokerage statements for cost basis figures for an investment interest expense deduction of 0?  It doesn't make a lot of sense.  It seems like this shouldn't be necessary, and if it is necessary, shouldn't TurboTax ask us for this information earlier in the questionnaire in a clearer way?