Whatever the method of delivery, it’s important that the tenant have proof that the landlord, or the landlord’s manager or agent, received the notice.

Mark Gee suggest you call the local oil companies and see if they can tell you if they've done an oil delivery or tank sweep at that address.

If the landlord proposes to retain any portion of the security deposit for rent, damages or other legally allowable charges under the provisions of this act or the rental agreement, the landlord shall return the balance of the security deposit without interest to the tenant within thirty (30) days after the termination of tenancy, delivery of possession and written demand by the tenant.

Also, many trades are payment then delivery of files.

And I guess Amazon deliveries to the rental won't show up on records.

I have 5 Laundromats, WDF and Pick Up and Delivery services.

Essentially, our Notes require the request to change payment address to be made in writing and submitted to the Borrower's address as listed in the Note by first-class mail or personal delivery. 

Also, add in the fact that they have to keep track of when the tank is getting low so they can schedule another delivery before it runs out.

For those who give gifts - gift cards, baskets, etc...what is your method of delivery? 

(a) This chapter does not apply to:(1) A person not licensed under this chapter who performs any of the acts described in § 17-42-103(10) as:(A) An owner of an individual freehold or leasehold interest in real estate;(B) In the case of a corporation, limited liability company, limited partnership or other entity recognized by law holding a freehold or leasehold interest in the real estate under subdivision (a)(1)(A) of this section, a member, manager, partner, or officer who has authority to make management decisions affecting the overall policy of the entity regarding real estate activities involving only the interest of the owner;(C) An individual attempting to acquire for his or her own use a freehold or leasehold interest in real estate; or(D) In the case of a corporation, limited liability company, limited partnership, or other entity recognized by law intending to acquire a freehold or leasehold interest in real estate under subdivision (a)(1)(C) of this section, a member, manager, partner, or officer who has authority to make management decisions affecting the overall policy of the entity;(2) An attorney in fact under a duly executed and recorded power of attorney from the owner or lessor authorizing the final consummation by performance of any contract for the sale, lease, or exchange of real estate, provided that the attorney in fact does not receive or have an expectation of receiving a fee, commission, or other consideration, directly or indirectly, for performing the act;(3) An attorney at law in the performance of his or her duties as an attorney at law;(4) A person acting as a receiver, trustee in bankruptcy, administrator, executor, or guardian, or while acting under a court order or under the authority of a will or of a trust instrument;(5) A person acting as a resident manager when the resident manager resides on the premises and is engaged in the leasing of real property in connection with his or her employment;(6) A person employed only at a salaried or hourly rate to engage in the leasing of real property for or on behalf of a licensed principal broker, the real estate firm of a licensed principal broker, or an owner of real estate, if the person:(A) Does not engage in or offer to perform any practice, act, or operation set forth in § 17-42-103(10) other than receiving a security deposit or payment as permitted by subdivision (a)(6)(B)(iii) of this section; and(B) Performs only one (1) or more of the following functions:(i) Delivering a lease application, lease, or an amendment to a lease application or lease to any person;(ii) Receiving a lease application, lease, or an amendment to a lease application for delivery to the principal broker, real estate firm, or owner;(iii) Receiving a security deposit, rental payment, or any related payment for delivery to and made payable to the principal broker, real estate firm, or owner;(iv) Acting under the direct written instructions of the principal broker, real estate firm, or owner:(a) Showing a rental unit to any person; or(b) Assisting in the execution of a preprinted lease or rental agreement containing terms established by the principal broker, real estate firm, or owner; or(v) Conveying information prepared by the principal broker, real estate firm, or owner about a lease application, lease, the status of a security deposit, or the payment of rent to or from any person;(7) An officer or employee of a federal agency or state government, or any political subdivision, in the performance or conduct of his or her official duties;(8) A multiple listing service wholly owned by a nonprofit organization or association of real estate licensees;(9) An officer of a corporation, a member or manager of a limited liability company, a partner of a partnership, or the equivalent of an officer of another form of business entity acting with respect to real property owned or leased by the entity or an affiliated entity under common ownership or in connection with the proposed purchase, sale, rental, or leasing of real property by the entity or affiliate if the acts are not performed by the officer, member, or partner for or in expectation of a commission or other compensation resulting solely from a successful transaction; or(10) A person employed primarily at a salaried or hourly rate by a corporation, limited liability company, partnership, or other business entity acting with respect to real property owned or leased by the entity or an affiliated entity under common ownership or in connection with the proposed purchase, sale, rental, or leasing of real property by the entity or affiliate if the:(A) Acts are not performed by the employee for or in expectation of a commission or other compensation resulting solely from a successful transaction;(B) Primary business activity of both the entity and affiliated entity is not ownership or acquisition of real estate; and(C) Employee is not providing real estate services to or on behalf of more than one (1) entity not affiliated by common ownership.