Legal GuardianshipThere are a number of steps you need to take to become the legal guardian of a child. In general, filing to become a guardian doesn’t require a lawyer, but the process can be complicated and prolonged without one, especially since there are complicated notice provisions, and other documents that must be filed correctly. Incorrect filings often result in rework that prolongs the matter.
A lawyer can help you present your case to the court, especially if one or both parents object to the guardianship.
If you are curious the California Courts have a really well prepared overview of the process.
You should seek legal advice from a lawyer before taking on any legal matters yourself.