My question involves landlord-tenant law in the State of: Hawaii
My lease agreement says the following.
"TERM. Landlord leases to Tenant and Tenant lease from Landlord the above described Premises together with any and all appurtenances thereto, for a term of 24 months, such beginning on 15 Nov 07 and ending on 15 Nov 09.
RENT. The total rent for the term hereof is the sum of $1000 payable on the 1st day of each month of the term, in equal installments of 1 payment ($1000), first installment to be paid upon the due execution of this Agreement, the second to installment to be paid on 15 Dec."
...
LATE CHARGE. In the event that any payment required to be paid by the Tenant hereunder is not made within three (3) days of when due, Tenant shall pay Landlord, in addition to such payment or other charges due hereunder, a "late fee" in the amount of fifty ($50) dollars."
An addendum was signed that day which states the following.
"Both parties agree to have (tenant's name) pay the monthly rent of $1000 by the 3rd day of each month, mailing to (landlord's name)."
I have some questions about how this is read legally. (1) When is the rent due? What is the "grace period"/late fee period? The addendum and lease do not match one another.
(2) If a dispute arises between LL/tenant, the lease says the sum total for the "total rent for the term hereof is the sum of $1000" on a 24 month lease. Shouldn't that read $24,000 for a $1000/month rent? If it doesn't and the tenant must pay what he's responsible for remaining in the lease, how do you interpret that? I understand what the intent is, but the words on the signed document don't support that. What legal implications does this have for either the LL or tenant if this went to court?
I work in the nuclear power industry and we're obviously very picky about the exact words written in our requirements and regulations. The words in the legal document seem to confusing, contradictory and not accurate in the lease. What might be the consequences for the parties involved in the case of a dispute, termination, court case, abandonment, etc? The LL and tenant have personality conflicts and can't come to an agreement on settling anything. Thank you for you help!

