This is probably too late to help the original poster, but may help others ...

Under Hawaii law, the owner can demand only the first month rent in advance plus a security deposit not to exceed the equivalent of one month's rent. Anything over that is illegal. See:
http://www.capitol.hawaii.gov/hrs2009/Vol12_Ch0501...

Note the part that says:
"The landlord may require as a condition of a rental agreement a security deposit to be paid by or for the tenant for the items in subsection (a) and no others, in an amount not in excess of a sum equal to one month's rent. The landlord may not require or receive from or on behalf of a tenant at the beginning of a rental agreement any money other than the money for the first month's rent and a security deposit as provided in this section."

Dee,

I have never heard of a tenancy ID. Can you call the property management office or go see them in person (even better)? They should be able to provide you with documentation.

Do not provide any money until you have seen this and signed the lease in person.