Which rule pertains to the reported misconduct obligations of attorneys?

Rule 8.3 of the ABA Model Rules of Professional Conduct addresses the obligation of attorneys to report misconduct. This rule requires attorneys to inform the appropriate professional authority if they have knowledge that another attorney has committed a violation of the Rules of Professional Conduct that raises a substantial question regarding that attorney's honesty, trustworthiness, or fitness as a lawyer.

The intent behind this rule is to uphold the integrity of the legal profession and ensure that attorneys act in a manner that reflects ethical standards. By mandating the reporting of certain misconduct, Rule 8.3 attempts to foster accountability among attorneys, encouraging them to take action against unethical behavior rather than remaining silent.

In contrast, other rules mentioned in your question focus on different aspects of attorney conduct. For instance, Rule 1.7 pertains to conflicts of interest, Rule 7.1 addresses communications about a lawyer's services, and Rule 6.5 deals with non-profit legal services and conflicts of interest for pro bono representation. Therefore, Rule 8.3 is specifically focused on the duty to report misconduct, making it the correct choice in this context.