The Supreme Court also has an advisory committee that may issue formal opinions under The Supreme Court also has an advisory committee that may issue formal opinions under Rule 5.30. Attached are the most recent formal opinions:
- Formal Opinion 115 (amended March 4, 1988): Withholding Client Property
- Formal Opinion 117 (October 21, 1983): Failure to Cooperate with Disciplinary Committee
- Formal Opinion 118 (October 21, 1988): Unused Client Funds Remaining in Trust Fund
- Formal Opinion 119 (August 30 1990, as updated January 18, 2022): Advancing Funds
- Formal Opinion 120 (March 26, 1997): Conflict of Interest
- Formal Opinion 121 (April 5, 2006): Representation by Nonprofit Corporation Attorney
- Formal Opinion 122 (March 8, 2006): Settlement Terms
- Formal Opinion 123 (March 8, 2006): Recording Conversations
- Formal Opinion 124 (August 20, 2008): Collaborative Law
- Formal Opinion 125 (November 13, 2008, as updated January 18, 2022): Indemnification of Opposing Party
- Formal Opinion 126 (May 19, 2009): Waiver of Postconviction Relief
- Formal Opinion 127 (May 19, 2009): Scanning Client Files
- Formal Opinion 128 (amended October 24, 2018): Nonrefundable Fees
On behalf of the advisory committee, the Missouri legal ethics counsel also publishes informal advisory opinions and additional resources, including information about requesting formal or informal opinions.