organization there shall be a rebuttable presumption that such adverse action is an act of retaliation relating to the participation of the tenant in the tenant organization. (D) Enforcement protocol (i) In general The Secretary shall, not later than 1 year after the date of the enactment of this paragraph, establish a protocol for the enforcement of this paragraph and such protocol shall— (I) include an independent investigation of tenant and advocate allegations of abuse and retaliation