Property management software system project

Our friends are planning to create a property management software as their final year project. Please suggest if you have any ideas.
thanks

OpenMAINT http://www.openmaint.org/en
openMAINT is based on the open source software CMDBuild and was developed applying the most advanced project criteria and the best available technologies. Everyone can freely download openMAINT and use it free of charge. You should try and experiment it. Ask me if you have more questions, happy to help for your project.