The use of “daily deal” websites to sell vouchers to be redeemed for discounted legal services does not violate the Rule 5.4(a) prohibition on sharing of legal fees, but the attorney is cautioned that the use of such websites must be in compliance with Rules 7.1 and 7.2 and could lead to violations of several other rules if logistical issues are not appropriately addressed. See Ethics Opinion 11-05.