yes, it is possible to win a case without a lawyer. Traffic citations are a good example of people who represent themselves in court and win all of the time.
A defense lawyer wins by using the advantage that the State or the plaintiff suing the defendant has the burden of proving the the defendant is guilty or liable. The state in a criminal matter must...
In short yes. Providing you have signed a 'no win no fee' agreement with your solicitors. Be careful as there is no standard no win no fee agreement, the terms can change depending on your solicitor....
Most representation agreements state that the client is employing the law firm, rather than a particular lawyer in that firm, and so any lawyer in the firm may be handling aspects of your case...