Neither you nor your daughter may deduct health insurance premiums on line 29 - that deduction is ONLY allowed for self-employed persons.
However - neither you nor your daughter were fels-employed during this year.
That deduction is ONLY allowed for your spouse who was self-employed and had ne self-employment income.
You keep asking about the period 9/15/2015 - 12/31/2015 (time when my wife was sole proprietor) - that period is NOT relevant - when she actually became a sole proprietor is not relevant as long as she was a sole proprietor during the tax year and realized net business income from that activity.
See page 33 in instructions
But if you were also eligible to participate in any subsidized health plan maintained by your or your spouse's employer for any month or part of a month in 2015, amounts paid for health insurance coverage for that month can't be used to figure the deduction. Also, if you were eligible for any month or part of a month to participate in any subsidized health plan maintained by the employer of either your dependent or your child who was under age 27 at the end of 2015, do not use amounts paid for coverage for that month to figure the deduction.
"You" in that text is related to your spouse who is self-employed.
That is NOT related to you or your daughter.
Thus - your wife may not deduct health insurance premium for the period from Jan 2015 to Aug 2015 because she was covered with her employer health insurance plan during these months.
That is related to premiums paid for herself and for her spouse and dependents.
So when your wife is eligible for the deduction - that deduction includes premiums paid for her, her spouse and her dependent.
But if she is not eligible - none of premiums are deductible here.
Sorry if you expected differently.