What tptacek said: get everything you sign reviewed.
I re-read the OP; the overall point there was to be financially prudent, e.g. don't waste money. Don't pay an attorney for work he/she doesn't need to be doing.
The counterpoint is to pay them for the work that they _need_ to be doing; but without legal knowledge it's hard to know what that threshold is. I'd encourage people to err on the side of caution and if there's any doubt at all, engage legal counsel.