This man is a theif and a liar.
Wait until you see the lease. Read it. If any issue arises and its to his advantage to use it he'll use it against you. On the flip-side don't bother refering to the lease or even a resonable ethical request if there is a problem with the property...Aaron only has his interests at heart. Oh and the bond, once its in his dirty little hands forget ever seeing it again.
Aaron is a lovely man until he gets his hands on your money.
Avoid using this one man scam at all costs.