If you look into my portfolio you see there is an iOS project - Gas Checker is added on it. It is in objective C. It has been developing for more than 5 years. It has all the feature that a complimentary networking iOS application has. Basically, it uses a client-server architecture
Besides, I know Developments and Optimizations are for a developer to fix if he/she chooses to fix. In this case, I have a good code review practice to have the code generate minimal possible warnings. I was able to resolve many warnings as possible. I am so much familiar with the comprehensive list of reasons( Apple Appstore Review Guidelines documents) that can lead to your app's rejection in the review process
For availability, I can give you my personal cell number so you can call me at 24 x 7. Further, I will available myself most of the time to provide a great support for your project
Now, I think you would prefer to work very closely. Actually, I always like to work in below mode:
■ You will come for a discussion with me. We will discuss on task and you will assign me the task
■ I will agree with you on a set of task that I am going to deliver this by today
■ Then I will share my screen, I can check what I am doing and I am wasting time here or not
■ At the EOD I will Submit my task to you and you will check whether it is correct or not
■We will again start with a discussion of the next day
I think in above way, we can go step by step and gain trust on each other to work long term