The grandaughter of Thomas Watson, founder of IBM adopted her lesbian lover under a Maine law that allows for adult adoption, "broke-up" with her a year later, but by then one of her grandmothers had died leaving a fortune to the "grandkids." The Sapphic Sibling of those grandkids now has a claim on this money.
This will be more complicated than the Anna Nicole Smith intestate situation which went to the Supreme Court on a jurisdictional issue.
I raise this story to delineate why many are so opposed to same-sex "marriage" for reasons having nothing to do with animosity to homosexuals. The iron law of unintended consequences. Here, Maine instituted this law so that aged people without heirs could adopt people that were "like a son" to them, even if they were older the age of 18. A rich lesbian with a good lawyer now imports this law to another state. She is no longer in a relationship with her "daughter" (ooooh) but some California judge now has to sort out a problem neither forseen by the Maine legislators, nor intended by the people of Maine. (This is also another reason states should not allow homosexual stranger adoption).
Once the law has incorporated the principal of polymorphous perversity and that there is no difference between men and women, even in matters of sex and procreation a host of disasters ensue.
The only people who benefit are the lawyers....oh wait.. maybe not disasters!
Now must we have a law that when you adopt the person you are sexually active with the adpotion is annulled upon the ending of the sexual relationship?
Why should this be allowed in adoption at all? Some would say this why we need same-sex marriage but nothing prevented the lesbian IBM heiress from putting her paramour in her own will, nor indeed from entereing a civil union in the states (like California) that recognize them, or indeed Massachusetts.