Generally, when obtaining representation for yourself and your property interests, you must make sure that your interests are indeed being protected and your wishes respected as much as legally possible. The moment it becomes clear that your attorney is not acting accordingly, it may be time to change your lawyer.
What You Should Expect
You are the best advocate for yourself, so there will be things that will make it abundantly clear to you whether it is time to change lawyers. From the beginning, your attorney should provide you with a clear roadmap and plan for the litigation. Your lawyer should communicate with you about how they see the dispute, and their plan to win your case.