I looked into them, but for various reasons I'm focusing on secular groups. Also the international organization gets an atrocious rating (http://www.charitynavigator.org/index.cfm/bay/search.summary/orgid/3789.htm) from Charity Navigator, although various chapters (http://www.charitynavigator.org/index.cfm?bay=search.results&keyword_list=habitat+for+humanity&Submit.x=0&Submit.y=0&Submit=Submit) do better.