Because you acquired the home by a gift, your basis usually is the basis that your parents had in the home (what they paid for it, plus capital improvements they made over the years). It may be difficult to reconstruct this information, but their initial cost may be available (e.g., published on Zillow).
Employer established account that provides tax-free reimbursements to employees for deductibles and other expenses that could be taken as itemized deductions.