Handing over development projects to a third party can be a tricky task. Some developers will be masters, while others just aren't right for certain jobs. Some developers can develop high-end applications, while others give you buggy code that requires heavy testing and might take months to resolve. Before handing over a project, you should therefore be comfortable with the domain expertise of the developer you are working with.
This is a companion discussion topic for the original entry at https://blog.crowdbotics.com/how-to-efficiently-hand-off-projects-to-a-third-party-developer/