Role of CHS & It's Officers in execution of will for transfer of ownership of flat

Namaste Sir(s)/Mam(s) We have a flat in certain CHS in thane which was purchased by my father and out of love & affection towards his mother (my grandmother) he made her a co-owner in the property. Before death, my grandmother made a will in which she has appointed my mother (her daughter in law) as the rightful beneficiary for all her belongings & properties or her share in any property. We have now left living in the CHS and moved to a better place - one of the reasons was particularly us getting targetted by everyone since we are residents of the state. We ie CHS officer bearers & my parents have certain disputes which are being adjudicated at sub-registar & registrar level. Since my grandmother's death in 2017 my parents have been trying to get the name of my grandmother substituted by the name of will beneficiary (daugher-in-law) but the CHS committee rejected the application saying you have some dues pending with the society so we cannot consider your request for transfer of title. Another two times my father their they replied saying we don't understand English give letter in Marathi. In 2023, I have once again approached the CHS Officer who earlier rejected my application for being in English. I retyped the same in Marathi which when I asked permission to submit he said me to come in person at designated time for which I followed up and submitted the application. Now the CHS officer is telling me that he shall seek legal opinion of a lawyer for this transfer of title for which I will have to pay lawyer some fees for his legal opinion, the lawyer is always busy and recieved call once but does not disclose the legal charges to be paid. I also do not know if he is a lawyer or not. After this legal opinion comes he will represent this in AGM or SGM and if nobody has any problem then he might consider for process. CHS officer isn't allowing to refer case to any other learned advocate of our choice. My query is whether such a lengthy process is required to be followed when MCS Act lays down very simple guidelines saying in case of availability of will, family arrangement or probates, society shall transfer title of property to the will beneficiary immediately ? All the bills society maintenance charges etc are being paid by will beneficiary post death of the co-owner (grandmother).