The IAF has no ties to ACORN. ACORN has a national agenda it promotes while IAF affiliates are all independent and locally driven. It's a huge difference. Saying they are the same organization or calling them communist or whatever is very misleading.
Look at what other IAF affiliates are doing, and you'll see it's good. Every affiliate contains Catholic parishes and none of them are taking action on issues contrary to Catholic teaching. That's very important.
Here's a recent example: http://www.npr.org/templates/story/story.php?storyId=113931948. This story came out the same day Mark Shannon was cheering the burning of a “ghetto” (his words) apartment complex in Edmond...