For three people, you can try Lacerte tax software. It is a powerful tax preparing application with a user-friendly interface and a comprehensive library of over 5700 forms.
You get to know them in-depth about the features of Lacerte tax software in this blog
If you are looking for online services, then hosting Lacerte tax software can be helpful. You will be able to access the tax software anytime, anywhere, with you other 2 members along with complete security and low operation costs.