According to the preface, what are the two main detailed Guru biographies found in Maharashtra, and who wrote them?

The preface identifies two principal, detailed Guru biographies in Maharashtra that are suitable for study and Parayans. The first, as mentioned in Chapter 0, is the 'Brihat or Thorale Guru Charitra,' a sweet and graceful work written by Shri Saraswati Gangadhar about Shri Samarth Sadguru Narsimha Saraswati Maharaj. The second major work discussed is the 'Shri Sai Satcharita,' an inspirational biography of Shri Sai Baba Maharaj written by his devotee, the late Shri Govind Raghunath alias Annasaheb Dabholkar. The text explicitly states that apart from these two, no third work written in such detail is found.