Question
The snow has just melted on our lawn and there are numerous brown spots all over the entire lawn front and back. The neighbors lawns do not have the spots.

Answer
Glenn -

I think we can just assume that this is because of the snow. You may have a different type of grass than your neighbors, accounting for your brown spots while they don't have any. No need to worry. With the weather warming up, the brown spots should go away on their own.

Best of luck,

Steve