The answer to part 1 is "The business ownership structure which would best serve the family is a limited liability company (LLC). It provides its owners with limited liability such as business debts, and It isn't taxed directly by the internal revenue service (IRS)."
The answer to part 2 is "Some insurance they could consider would be medical malpractice insurance, which provides protection against lawsuits brought by patients for medical errors or wrongful death."