1. After the demise of your father intestate, his share of 50% of all he joint properties are to be shared amongst all the legal heirs of your father being all 4 brothers and your mother,
2. How can your mother get her name registered in the Registrar's office as the title holder of your father's share of the joint property?
3. Change the name in municipal and/or BLRO records does not give title of the property,
4. Has your mother made any settlement/partition deed for dividing her share of the property?
5. Get the matter amicably settled and get the settlement registered since afterwards it may take a complicated turn.