Deductions & credits

When you say "it could" be deductible, why would it not be? I don't want to make a mistake on the tax return.

There have been 8-10 thousand dollars spent on things like tools and equipment. At the time of purchase, it was without thinking about how it would affect our tax return. It would be good to be able to personally deduct it on the k-1 if allowed, since it sounds like it cannot count as a business expense. Reimbursement is not an option at this point.