If you go through the appropriate channels and something goes awry, then you can sue
The British Embassy won't get involved at all - I'd be surprised if they even bothered to recommend a lawyer. They may have a list of English speaking lawyers, but they won't take any responsibility for them.
The lawyer they recommend should be competent.
Like I say, they won't recommend one. They might do so unofficially, but certainly not 'on the record'. And that's assuming they'll even bother to help you.
They can not leave British citizens in this scenario without help.
Oh yes they can. The British Government considers embassies to be for consular assistance, not for everyday things - if you get arrested, then of course the Embassy will help (at a cost, of course) - but they simply aren't interested in the personal lives of British citizens.
Any problems, then contact your local MP, that,s what they,re there for.
Again, MP's have nothing to do with this. The FCO is very unlikely to get involved in the legal processes of another EU country - why would they, when you can simply contact a lawyer to deal with it?
Always keep all documentation for such eventualities, never try going it alone, you could lose everything.
Now - this is sensible advice.