Thanks for the new designs. I do like what you did in #51. The others are good too. What I was picturing is maybe a very slight gradient on the letters from the top. Light to dark. I hate to be cliche´ but, something to make it "pop" a little more.
#87 is nice. Because of website design they want to see the circle to the left of the logo. Also, try black or dark grey/green instead of the light green on LAWN. Let's also see it with a small ".com" rotated clockwise to the right of sodlawn.
My client likes #109 but they aren't big fans of the leaf on the bottom. My suggestion is to somehow make it not look like a leaf and more like a hill. I would also like to see a little bit thicker grass blades.
Another thing you might try is to use the same effect from #110 but instead of green behind the grassblades use the grey color from #109