Practice you contract closings, sale pitch, etc. in front of a mirror and talk it out watching voice inflextions and the rythem of your delivery.

Ask your concrete company or contractor if there is a minimum order plus a delivery charge. 

He also charged delivery charges if needed.  

Notice in person may be by personal delivery to the tenant or any person residing at the premises who is 16 years of age or older or personal delivery to the premises and affixing the notice to the inside of the main entry door.

As you start the foundation, you should be thinking about the materials you will need two or more weeks out depending on your delivery time. 

There is usually a fee for load and delivery that depletes the profits.  

So if need be I could keep doing the delivery job to make ends meet. 

In Louisiana one of the waivers that most landlords put in their leases is as follows:"Lessee hereby waives written notice to vacate the premises and/or delivery thereof otherewise required under Article 4701 and 4731 of the Louisiana Code of Civil procedures and article 2713 of Louisiana Civil Code.

If you have specific neighbourhoods (with the exception of the lower end of Gottingen and Uniacke Square, unless the neighbourhood has changed significantly in the last 15 years), then I'd take a stroll and talk to the postal delivery folks {while you still have door-to-door delivery}.  

Below, first delivery of materials, framing starts today!