A. It's true that under the new tax law, commissions are still deductible, but if your financial advisor firm bills you wrap and AUM fees, they could no longer be tax deductible going forward.
This leads to some best practice for paying fees out of your IRA accounts.
For Traditional IRA Fees
You should pay fees directly from your traditional IRA account, this effectively gains a deduction since investment fees are not paid from pretax fund.
For Roth IRA Fees
Roth IRAs are funded with after-tax dollars, so there is no tax benefit to pay investment fees out of your Roth IRA fund. It's best to pay a Roth IRA's expenses from outside Roth IRA account.