Create a Native XCode project for manage geolocalizated info

I need an XCode app for iPhone and iPad I'll provide server WS and all layout images. I've already a core structure with few features, you have to port this part to CoreData (I prefer this solution for data management) and do the project! I need code day by day for show work in progress Bid value has a fixed price but after this work we'll have other features to add Due to problems that we had with others coders, well pay step by step, starting creating first milestone and if all we'll be OK, we'll create second etc... We're looking for a coder for a longterms partnership