Which personal law applies in case of seller(s)?
Are they (original owner, legal heirs) all Hindu and/or converts?
Is the said property self earned/acquired or ancestral?
The said property is agricultural land, rural, Urban, or it is a building?
The said land might be agricultural land and if yes, are you eligible to buy such land in said state, as per LOCAL state laws/rules?
Have the deceased owner left any valid WILL?
Is the WILL duly acted upon without any cloud on IT or probated?
Or the legal heirs have submitted their claim duly supported with correct/genuine death certificates/legal heir certificates and update mutations records properly?
The MoU for oral partition is available?
The registered Family partition deed is after oral partition?
Have all parties to MoU given consent in registered Family partition deed?
Who are other legal heirs?
Have they any claim or charge pending?
After 20Y how the sellers have mutated the land in their name; say; adverse possession allowed and perfected by court decree or said registered Family partition deed?
Do you have mutations records with all link docs in the entire chain?