Weed removal

Wife and I recently bought our first home and the previous owners did not take care of their yard much. We’ve tried to do as much as we can ourselves here and there, but there’s a lot of work left and we are looking to hire some professionals for a one time clean up/weed removal.

Anyone have any recommendations? Especially for people that can come soon, as we also have a big ant problem which is being exasperated by the weeds - we have a bunch of stepping stones and our pest control guy said that they’re laying eggs under there, and the weeds in the cracks make it so under the stones doesn’t get as much sun/retains more moisture. Thank you.