Case: 1. A, B and C are co-owners of a lot. They sell the lot to X with the right to repurchase in the same contract. Can A redeem the portion of 1/3 undivided interest? Can X compel the co-owners to redeem the whole? Explain why.

2. A B and C are co-owners of a lot. A sells his undivided interest of 1/3 on the lot with the right to repurchase to X. Sometime later, B also sells his 1/3 undivided interest to X with the right to repurchase. Thereafter, C also sells his 1/3 undivided interest to X with the right to repurchase. Can X compel A to redeem the whole property if he wishes to exercise the right of redemption?

3. D obtained a loan from C amounting to P200,000.00. The loan is secured by a mortgage of D's lot. If C assigns his credit right to X, is the mortgage also considered assigned? Why or why not?

4. D obtained a loan of P50,000.00 from C. Thereafter C assigned his credit right to X. On the due date, X demanded payment from D but D could not pay because he is insolvent. Is C liable to X? Why or why not?

5. D owes X and Y. X and Y may sue D for collection. D files his answer to the complaint. While the case is pending, X sells his share of the credit to Y. D cannot redeem the share of X from Y. Is the case correct? Why or why not? Explain your answer and cite the Article number used as a reference.

6. D owes X P100,000.00. For failure to pay; X sues D. D files his answer. While the case is pending, X assigns his credit right to Y whom he owes P80,000. D cannot redeem against Y. Is the case correct? Why or why not? Explain your answer and cite the Article number used as a reference.

7. D obtained a loan from C. To secure the debt, D mortgaged his lot. Later, D sold his lot to X. When D could not pay, C sued D. While the case was pending, C assigned his credit right to X. D has no right of legal redemption against X. Is the case correct? Why or why not? Explain your answer and cite the Article number used as a reference.