Ancestral property without any documents

We have been living and cultivating crops in our ancestral agricultural land for the past 4 years. We don't even have any records in registrar office. and we want to make it clear documents now. we are at 3rd generation now. And all are separate their part through "Oral Partition" done about 30 years back equally. So all are living in their own portion and doing agriculture of their own. But now one of our siblings is not willing to come for documentation, and So i filed a case " Declaration suit" for our portion which we are enjoying. it's almost three years from case filed date. still my lawyer is delaying for getting result. and only getting money. we have almost lost our all money with him and still no action. Now no money to spend.  So now is it any other way possible to get record /document our own portion without this lawyer, if so what is an ideal way to to get document our portion of land and house. Can you give a right solution to me.