[{id:"RTC7280",firstName:"Jack",lastName:"Miller",slug:"jack-miller",serviceAreas:[{name:"Nashville",slug:"nashville",type:"city",totalClosedSales:4},{name:"Franklin",slug:"franklin",type:"city",totalClosedSales:10}]}]

db.collection.aggregate([{"$match":{"serviceAreas.slug":"nashville"}},{$unwind:"$serviceAreas"},{$sort:{"serviceAreas.totalClosedSales":-1}},{$group:{_id:"$_id",firstName:{$first:"$firstName"},lastName:{$first:"$lastName"},slug:{$first:"$slug"},serviceAreas:{$push:"$serviceAreas"}}}])