Help needed with trust structure

Hi All,

On Page 154 of Steves 0-260 properties book he talks about how he has a trust set up to purchase his investment properties. He goes on to say that he is the guarantor of each loan in order to "lend his debt repayment ability to the deal"
 
He then says that this allows him to secure multiple loans, thereby allowing him to control more IP's than if he was borrowing in his own name.

My questions are;

What are the best structures?
How does this structure allow you to not "max out" the amount of money the banks are willing to load you? Am I correct in assuming that because steve may do lump some deals during the year his taxable income goes up and the banks are willing to lend more becuase of this?
Does anyone know of any information or books I can read on the subject?

Thanks in advance for any info..

Cheers