There do not seem to be any legal remedy as far as that property is concerned unless you can cook some ground to challenge the will of your grandfather and if you succeed in that you get all right in that property as a rightful share holder. 9013429126 is my whatsapp for future legal issue. I am a self proclaimed best lawyer.
Yes atleast you can claim maintenance from your brother. For any information, feel free to contact me on my e-mail "firstname.lastname@example.org"