My significant other has a 5yo daughter which have been raised by his mom since she was born (the mother didnt want anything to do with her so she gave her up to his mom when she was only 3days old). She was born in another country and has been here for about 7months. The little girl is extremely spoiled and a brat because shes backed up always by the grandma; i have found ways to cope with it and try to give her some education. I have always been around since she got to the country the little girl loves me and i love her BUT the grandma is not letting him or me take over parenting like she doesnt want me to change her clothes,give her baths, or anything; also when shes around the girl is a little different with me. idk why MIL is doing this because im the one thats going to be like her mother when we move and already have responsibilities like taking her to school picking her up, helping with hw and everything they even think im her mother in the preK. me and s.o are planning to move out in january we have the apt and everything already  just waiting for it to be ready to move in.  I reallyhope she knows that shes only causing the little girl damage. I just want some advise on what to do we already spoke to her about it and nothing has been changing and im just wondering if shes going to go knock on the door each morning to get her ready for school😂 sorry forgot to mention that where im moving is the third floor of the house my in laws live and we have to because of financial issues; i just want my own space and each to be in their own home and this issue with this little girl fixed I want to stop stressing out about this whole situation  im 13 weeks pregnant 14 tmrw and i really want my baby to be ok and stress free. What do you guys think? Is anyone in any similar situation??  sorry for the long post and thanks in advise to who replies