a good English speaking lawyer or solicitor in the London area
Sure you don't mean "Polish speaking"? If you do, I'd suggest emailing a few legal offices in Poland B (Bialystok, Slupsk, Radom, etc) and asking them for help: they'll be a hell of a lot cheaper than a UK-based Polish lawyer. I can most probably find an English-speaking Polish lawyer in Slupsk for you but it won't be anybody that I've ever worked with myself.