(Solve the following problems base on the business taxation laws of the Philippines)

Mr. Pim Musay, Filipino and married died in 2021, leaving his estate in favor of his surviving spouse. The following information were made available: Real property in Baguio City was acquired during marriage. Said property is supported by a barangay certification that the spouses resided in this property at the time of Mr. Musay's death. The fair market value of this property as per latest tax declaration is P15,000,000 while the zonal valuation as of the time of death is P20,000,000. Said real property was held as a mortgage in a loan applied by the spouses. As of the time of death, the outstanding balance of the mortgage payable amounted to P5,000.000. Real property in Urdaneta, Pangasinan inherited by Mr. Musay during marriage, two and a half years ago, from his late father. The fair market value per tax declaration as of his death is P8,000,000 while the zonal valuation is P12,000,000. Said property was previously taxed at a value of P10,000,000 when Mr. Musay inherited the property. Real property in San Juan, La Union, donated to Mrs. Musay, 10 years ago (before marriage) by his parents-in-law. The fair market value as per latest tax declaration as of the time of Mr. Musay's death is P3,000,000 while the zonal valuation is P4,000,000. Other exclusive properties of Mr. Musay amounting to P1,000,000. Other properties of Mr. and Mrs. Musay - P3,000,000. Funeral expenses incurred during the wake and burial of Mr. Musay amounted to P1,900,000