Does attorney have obligation to represent from start to finish if I''ve not met any criteria (that I know of)allowing him to legally withdraw?

My boyfriend died unexpectedly- intestate. We have a child,but never married.His family caused problems; I had to retain counsel to get our child named sole beneficiary& heir. My attorney did a good job with everything.The boyfriends family filed for visitation requests& it branched out into a family matter as well as civil tort for damages to property/theft,etc. The probate lawyer started to handle the family matters but seemed to be an ineffective litigator for that type of case. i decided to use someone else for the family matter and lawsuit. Now it is time to close the estate and it is a bit convoluted but I dont think the details are relative to my question. I need to know if the probate atty is required to continue representing me even though I used someone else for the other matters? Hes been ignoring my emails 100% of the time;I cant get any answers from him as to how to proceed but I do want him to finish this.Can he withdrawal at this point even though I dont want him to?