Thinking that getting a good lawyer will get you investment is fallacy. The only thing that gets you an investor is showing traction and having a business model (at some point in the future, at least.)
That said, having a good lawyer is important just for legal reasons and because the lawyer can foresee complex situations (founders splitting up and so on) that you wouldn't.
your right, my comment was not intended as having a good lawyer gets you an investor. simply shows your going about things in a professional manner and not likely to have some dodgy legal snaffu derail you at the last minute.
Some advice about what not to do is a good way to put it.
That said, having a good lawyer is important just for legal reasons and because the lawyer can foresee complex situations (founders splitting up and so on) that you wouldn't.