question 3 and 4 fully explained

Question 3 Why must both a promissory note and a mortgage document be used to create a mortgage? (4 points) Question 4 Fred is a lawyer searching to buy office space to use for his legal practice. Fred is considering an office unit located in a mid-rise office building that is marketed as "Class A" office space. (a) If this office building is a condominium, who will be the owner of Fred's unit? (3 points) (b) If this office building is a cooperative, who will be the owner of Fred's unit? (3 points) (c) Based on the information provided, can we infer that Fred is a successful lawyer? (3 points) Question 5 On January 1, 2010, a borrower took-out a 3/1 ARM for 20 years bearing initial APR of 4%. Thereafter, during the loan's adjustable period, APR was 2% over the Secured Overnight Financing Rate (SOFR), adjusting annually on January 1". Compounding was monthly for the full