Sorry to see you here, @GJH_104  - we should be able to answer most of your questions - and also get lots of support, comfort & advice along the way.  You can vent away as well, if you like.  xx
What town/state do you live in?  You can add it to your 'profile' - that way people will be able to help you with services available in your town or nearby.  
It was my medical team that gave me a couple of choices re my own Onc (but I am not mets.)  As I understand it, most Oncs deal with Mets treatment as well as BC treatment.
Take care - feel free to put up a brief story of your BC treatment to date - then others who've had the same may well be able to contribute more to the thread xx