On January 1, 2016, Theta Corp. acquired a four unit apartment building at as cost of $1,475,000. Of this total, it is estimated that the land on which the building is situated is worth $250,000 and the balance qualifies as a Class 1 building (CCA rate 4%). Two of the units will be rented on a furnished basis. To this end, Theta acquired furniture at as cost of $45,000 which will qualify as Class 8 asset ( CCA rate 20%) During 2016, the units generated rent revenue of $140,000 and expenses, other than CCA, of $45,000. In July, 2017, the tenants in both of the furnished unites terminated their leases and moved out. Theta sold all of the furniture for $21,500 For 2017, the units generated rents of $54,500 and expenses, other than CCA, $29,400. Theta also operates a service business that generated positive business income in both 2016 and 2017. The service business does not own any assets.

Question: Calculate Theta's Net Rental Income for each tow years 2016 and 2017. Also, determine Theta's UCC balance on January 1, 2018.