The July 6 Wall St. Journal Sunday had a column titled Never Lend Money to a Friend: Repeat: Just Don’t Do It (no longer online but it’s still cached on Google). A section of the article details the problems with lending money to family, including siblings.
And in yesterday’s NY Times: Leaning on Their Parents, Again. It includes a profile of a guy who “… is among a growing number of mature professionals who receive financial assistance from parents, in-laws or both.”