Design pattern usage in a java project

I am working on a java project that requires us to use pattern patterns.

Me and my team is relatively inexperienced in using design patterns so we can't figure out what the best design pattern would be to use.

Our project is basically supposed to track financial portfolios with stock and accounts.

Here is the description of the project: http://ift.tt/1LYfMo0

By taking a brief look at the description of the project, can you think of some patterns that would be ideal for such a project?