What are the parameters governing a Muslim's relationship with disbelievers in their lands?

The default ruling is that it is impermissible to reside in the lands of the disbelievers unless there is a benefit, such as acquiring knowledge that Muslims need, or for the purpose of inviting people to Allah. If a Muslim resides in their lands temporarily for a legitimate need, then he must abide by their customs and laws, as long as this does not lead to disbelief or something forbidden. Among the rights of the disbelievers are: not assaulting their property or honor, inviting them to Allah with wisdom, adhering to truthfulness and avoiding deception, and treating them kindly in the hope that they may be guided.