Indemnity clause is necessary to protect your interests
iit indemnifies buyer against any legal defect in title you can change wordings of the clause as follows
The VENDOR hereby agrees and undertakes to indemnify and save the PURCHASER harmless in the event of any defect in the title of the schedule property or any claims put forth either by the VENDOR herself, or his legal heirs, representatives, successors or anybody, claiming any right, title, under or in trust for the VENDOR and also to reimburse all such cost and expenses of litigation or in the event the schedule property or any portion thereof is lost to the PURCHASER as a result of defective title or breach of covenants by the VENDOR"