Multiple food forest lots would be great and if set up and planted right would not be much maintenance. That said you'll need a lot of material and man power up front. If you have the time lapse (one full year) I would blanket the lots completely with a multi-layer sheet mulch right on top of whatever is there. See the attached sheet mulch recipe that will set in motion 3+ years of soil building and cleaning (the fungi drawn in for the chips will consume toxins etc.). This recipe will hold moisture and reduce if not eliminate ever watering your perennials - skip the top
cardboard layer and double up on the
straw or mulch to avoid any cardboard becoming exposed. I would recommend carefree fruit
trees such as jujube, mulberry (select grafted), juneberry, and Asian persimmon and figs if you are zone 7 or higher. Rosa rugosa for beauty and big
rose hips would look good at the entrance/along the
fence and deal well with any salt spray from the roads.
It would be a fun
project that all ages could help launch.
If you tell me what zone you are in I can further suggest easy care species.
If the image is not coming up here see it about 2/3rds the way down this page:
http://ecologiadesign.com/2013/04/05/food-forests/