There's one other piece of documentation you might want to add. James Chancellor's book, Life in the Family, also talks about the relationship between FCF and TFI. If you're interested, I'll look up the reference page where TFI's own expert and apologist makes the connection.

From the earliest days on the raod with "Uncle Dave," the COG refused any entanglement with government at any level. As late as 1995, Family representatives were adamant that any form of registration with the state would compromise their independence and freedom from the System. However, in January 1997, Family leadership and several nonmember supporters established the Family Care Foundation as a 401(c)(3) human services and grant-making organization. The Family Care Foundation (FCF) channels funds and support to Family missionaries and humanitarian projects around the world. In March of 1997, the FCF received tax-exempt status from the Internal Revenue Service of the United States. The System is still the System. But, the disciples are beginning to find ways to work within it.