My experience with Psychology Today is that almost all of them will have their strengths listed in Green, these will usually be 3 things they are particularly suited to treat. Pay little attention to the lengthy list in black because, and again my experiences only, they seem to be more of a generic "yeah I can work with that...". If you are looking for someone to treat BPD, I suggest looking up people who have Personality Disorders listed in green. Best of luck, it is a really hard process!