I stopped taking kids with feeding problems several years ago. A picky eater and a child with an actual feeding problem are very different.
If a parent calls and says her 15 month old only eats pureed foods, or they waited til 12 months to start any solids, I usually don't want that child. The stress it puts on me just is too much. It's not my "thing". I'm fine with some problems, but not with others.
I would suggest they talk to a doctor about getting the child into a feeding therapy program.
http://www.reflux.org/reflux/webdoc0...m?OpenDocument
http://www.njpfa.com/services/feedingtherapy.html