I feel it is the best thing for the budget but it takes up alot of our time arranging deliveries and sourcing materials.

What happens if he refuses to sign for certified mail or isn't around at the time of delivery and then doesn't go to "retrieve" the mail? 

In the case of a gas station, we would look at how much gas was purchased and verify the claimed delivery numbers with the supplier. 

Also, let them know the rent you quoted is based on an as is delivery; depending on TI amount and length of lease term, the rent quote provide may need to be adjusted.

I have never ordered a sign .. so don't know but does not seem to unreasonable unless they promised you 3 day delivery or something.hopefully they did not just pocket your money and go dark.

Do you have the time and competency to oversee the work, keep the trades and vendors coordinated, handle the logistics (e.g. dumpsters, deliveries, etc.)? 

(for example on carpet they have offered free install, or free delivery on appliances and install with take away) Downside is HD can be scheduled out for 2 + weeks for jobs.I have personally used a "handy man" contractor who owns his own biz to do minor work like add railings etc.

Then they want a delivery fee.

In Georgia (the state where I'm licensed), you must either be a licensed broker or an unlicensed assistant to a broker in order to perform any of the following functions on behalf of a property owner: (A) Delivering a lease application, a lease, or any amendment thereto to any person; (B) Receiving a lease application, a lease, or any amendment thereto, a security deposit, rental payment, or any related payment for delivery to and made payable to the broker or the owner; (C) Showing a rental unit to any person, provided that the employee is acting under the direct instructions of the broker, and executing leases or rental agreements; (D) Providing information about a rental unit, a lease application, or a lease; (E) Providing information to a tenant about the status of such tenant's security deposit or rent payments or to an owner about the owner's financial accounts and payments from the owner's tenants; and (F) Performing any ministerial acts that are explicitly authorized by the broker in a written agreement between the broker and the employee.

As far as drugs, I would deal with it in a non-curable breach of contract section such as: Non-Curable Breach of Agreement: Any of the following events will be deemed a non-curable breach of this Lease; (a) Police raid upon your Premises; (b) Your arrest for possession/sale/storage of any narcotic/controlled substance/chemical or herbal contraband in or about the Premises; (c) Failure topermit Owner's entry to the Premises following receipt of adequate notice; (d) Failure to cooperate with Owner or any pest controller/fumigator/exterminator following receipt of notice of such services; (e) Defaults by you causing Owner to serve more than two notices to pay or quit, in any twelve (12) month period; (f) A misrepresentation on your Rental Application; (g) Delivery of any security door/gate key to anyone not party to this Lease.