In the first part of this look at conversion, I started talking about an individual who was raised Jewish, but either born to a Jewish father and not a Jewish mother, or was adopted and raised Jewish, but not converted to Judaism officially. (The following scenario may even be valid if the individual undergoes a Reform or Reconstructionist conversion.)
Say he grows up, becomes more involved in his religion and becomes more traditional in college. He meets a nice Jewish girl and they decide to get married. Problem is, they want to be married by a Conservative rabbi who won't officiate because according to traditional halacha (law) the guy isn't Jewish, even though the Reform and Reconstructionist movements recognize him as a Jew.

Does he convert? From Judaism to Judaism? It happens - more than you may be aware of. Or does he say that he's Jewish already and that he won't convert to a religion he is already a part of... then what? Most parents don't think this far down the line, and most parents wouldn't imagine that their child would become more observant than they are - we seem to see the opposite trend in this day and age. But it happens. And it's happening more and more.

This is one angle of where the conversion issue gets sticky. The reason I bring it up here is because it's a controversial topic that people generally don't like to talk about. But as Jewish adoptive parents of different movements, it's something we need to consider. Do we have our children converted to Judaism or do we just raise them as Jews? Do we have them converted by a movement that we currently affiliate ourselves with or do we consider other options? (I'm friends with a few Conservative adoptive families who specifically had their children undergo an Orthodox conversion to avoid any hypothetical issues down the line - just something some may consider looking into).

The bottom line is you should do your homework. If you are not doing a conversion for your child, make sure you are aware of what may lie ahead. If you are doing a conversion - in any movement - do your homework. Make sure you have copies of all paperwork, make sure your rabbi walks you through the process so that there are no surprises, and ask around to make sure that you are working with a rabbi who has done conversions in the past and others have been comfortable with.