Technically, Maya should be his half-sister, unless Lolo Soetoro is legally Barry's and Maya's father. It's kind of funny that the worst she can say is that Obama's lack of legal birth documentation is "unfortunate." Was it "unfortunate" when a story in the high school newspaper where she worked interviewed her and reported that Obama was born in Queen's Hospital ... not Kapiolani Hospital which is the official myth.
According to Wikipedia, she and Barry have the same mother. Maya is married to an American citizen. However, I don’t give any weight to what she has to say about BO’s birth since she is 9 years younger, knows only what she’s been told, and (just guessing here) has seen only the documents that have been published for the public consumption.