A. On August 14, 2002, the Defendant obtained the approval of the project plan under Article 33 of the former Housing Construction Promotion Act (amended by Act No. 6732 of Aug. 26, 2002) and Article 32 of the Enforcement Decree of the same Act (amended by Presidential Decree No. 17816 of Dec. 26, 2002), and decided to construct two apartment houses with 210 households (hereinafter “N apartment”) which are public construction-based rental houses on the land area of 7,373 square meters outside Mapo-si and Mapo-si, with the funding of the National Housing Fund under Article 32 of the Enforcement Decree of the same Act. The Defendant announced the announcement of February 28, 2003.

B. After that, the defendant entered into a lease contract with the winner upon receiving an application for occupancy according to the above public announcement of invitation. Among them, the contract details with the plaintiffs are as listed below.

(hereinafter referred to as “rental housing” as indicated in the table below. On the other hand, lease deposit for each of the instant rental housing has increased annually. The lease deposit for each of the instant rental housing is as listed in the table “Deposit” column in the annexed Table 1.

(hereinafter referred to as “each of the instant lease deposits”) Nos. 1 5, 201, 301, 301, 201, 201, 201, 20302, 303, 201, 303, 401, 401, 5, 201, 802, 802, 201, 205, 201, 806, 201, 802, 205, 201, 206, 305, 205, 201, 205, 201, 206, 306, 205, 201, 206, 30, 107, 201, 106, 206, 30, 205, 201, 206, 306, 2019.

The defendant completed the N apartment around September 2004, and completed the registration of preservation of ownership on the whole of the above apartment on September 14, 2004, and provided the whole apartment as joint collateral against the National Housing Fund on the same day and provided the whole apartment as joint collateral against the National Housing Fund.