Please answer questions with an explanation:

1) Who says "I will gladly pay you Tuesday for a hamburger today" and why is it applicable to real estate finance?

2) Location, location, location or leverage, leverage, leverage -Which is more important? Dont worry about being right, just give me an opinion with a brief logical explanation of why you chose either.

3) How does getting qualified at a teaser rate create risk for the borrower?

4) What were the reasons that ARMs became popular?