The lawyer, who I met he is taking 5000$ for application for one person.
The thing is that it's you still, who need to fill out the whole application. They are only checking it for mistakes and completeness, and they are the contact for cic inqueries. That's all.
If your case is really difficult then maybe it would be ok to meet to consult your options but I wouldn't suggest to hire them for whole process.
On other hand you can find on this forum people, who hired lawyer and they were in troubles because of mistake made by lawyer.
If you are in Canada, then try to find agencies, who work with government and help immigrants for no fee. For example CCIS in Calgary area. Maybe this would be an option for you.
The process might look scary but every time you will bump into difficulties I can assure you, you will find an answer on this forum.