I have a Murrary that is in my garage. I haven't used it in years. I got a new carburetor last year and a tune up... had them check it out as I want to sell it. Never got around to selling yet but now it has a gas odor coming from it. Really doesn't have much gas in it as most was used up before storing. What could be wrong, and how much do you think it will cost. My husband can't do that kind of work anymore because he is in a wheelchair.

Well... if it wasn't stored with a fuel stabilizer in the gas if it was stored over 3 or so months (and the engine run to get the carb treated... ) I'd check the gas tank... usually the gas drys in the carb, and sticks and dumps the rest into the engines crankcase...
Depending on the guy that's doing it, and how much he charges per hour... I have no idea how much they would charge, but a carb kit and some carb cleaner is a few bucks (15-20 at the most) if the carbs gummed...
Easy thing to do, is check the tank to see if it has a red looking, bad smelling gas... and if it has any in the tank... and check/smell the oil for gas.

Okay, thank you. I have to figure where it is coming from because my garage smells of gas terrible and I saw a few drops of I don't know towards the front of the mower.

You could maybe also have a tank, or fuel line leak...
I see in your other posts you were asking how to move it.. put the mower in neutral (N) and just push it out.
BUT do not let it sit out in the rain... at least put something over it, or store it under something.

Thanks.