not sure about the medical records and passports, but as for tax records, they could be evidence related to 'another crime' involving DJT...apparently the items were "in plain sight" along with documents on the Warrant...per the attached link, the DOJ has been through this before, let's hear what they have to say, in due course.
Link: https://www.ojp.gov/ncjrs/virtual-library/abstracts/police-seizure-items-not-listed-warrant-supreme-court-voids