Hello!

I just moved into my first home and my lawn could use some serious help. The front yard is comprised of crab grass, clover and grass, while the backyard is mostly crab grass and weeds. I'm new to this whole yard care thing and I'm hoping for some advice on how to get it into better shape by my sons birthday party in October. I know it won't be perfect by then, but any improvement would be great. I do have a sprinkler system that seems to reach the whole yard, and I live in northern Utah. Both back and front are incredibly lumpy so any thoughts on how to rectify that would be great also. I have attached a picture to give you a better idea of what I'm dealing with. Thanks for your help!