This bill, known as the "Green Star Families Act," amends title 38, United States Code, to establish a crucial counseling program for individuals affected by a veteran's suicide. Its primary purpose is to mandate the Department of Veterans Affairs (VA) to furnish no-cost counseling services to specific recipients. These services are intended for the next of kin of a veteran who dies by suicide, as well as any former volunteer caregiver who provided support to the veteran through a covered veterans service organization. The VA must ensure these counseling services are reasonably accessible and of high quality, and may partner with Federal, State, or private entities for their provision. The bill defines "next of kin" by priority and specifies "former volunteer caregiver" as an individual who provided uncompensated care for at least three months. Furthermore, the VA is required to promote public awareness by publishing program information online and directly informing eligible individuals. The Secretary is mandated to implement this program within 90 days of the Act's enactment.