For the first question, you'd have to define life. Generally life is considered to be 'organic', or carbon based and uses DNA as it's template. Thus AI, wouldn't really be 'life', if you were to consider life to be 'organic'.
Not all atheists believe in evolution. Neither do all atheists believe that evolution actually created things; the majority I'd say would believe that the big bang created things and evolution just happened to take place on this planet.
"I look at it this way."
Perhaps you should change the way you look at it, a robot doesn't have to be made by a man. If an alien species does exist, they could have created robots.
I doubt many atheists believe they have the power to create a living being, although we might be capable of it in the future with advancing technology. We might in fact have the power today actually, just unannounced or I'm unaware of it.
"I don't think nature nor a man has any power at all to give birth to a free will being."
Who says we have free will in the first place? Referring to to the bible as a source doesn't work as a convincing answer to this question. We may very well not have free will at all. In fact, I'd go as far to say that quite a bit of atheists believe this as well.
"I believe to give a person free will or conscience, you must have the power or force to give them the ability to reason"
Some would argue that it's not even a blessing, it's just a capacity we've developed through evolution; but there I am depending on the thing you inquired about.
Honestly, we do not know where consciousness comes from or if it's even a relevant thing. Looking at it from a direct perspective, a thing would have consciousness to us if it could communicate, animate, and look as if it contemplates an answer or decision. Anyway, that is a belief so I guess you weren't really asking for input on that.
"Where does reason come from if not from God?"
Good question, you're getting into the realm of philosophy with that question, and philosophy has yet to come to a decisive end. We don't know, and some people choose to acknowledge that and actively state that they don't know; while some people decide they're just going to believe something and stick to it, in spite of them not knowing. Reminds me of a quote, by no one I remember: "All questions you ask others are questions you're asking yourself"