if you mean "listed" as in with a real estate agent - RE's negotiate assignments.it's all about delivery and acceptance.if you deliver an offer and the seller accepts, that's first foundation for any contract.

Take out Pizza/delivery place. 

I’m curious if truss delivery is still taking a long time.I imagine the recent storms have set you back on your timeline, and wish you clear skies going forward.  

Not about the vendor, or delivery, something else that has nothing to do with the product.

Here’s what I liked:- I had the same salesperson throughout the entire process which involved rescheduling delivery twice due to tile not being done. - handled the entire transaction over the phone which Lowe’s would not do (they required me to sign something in person)- comparable prices with better customer service- emailed me the quotes and specs of all appliances - removed my old appliances for a reasonable fee- I’m supporting local small business like myself not some CEOs multi million dollar bonus. 

My soon to be tenants asked if she can have the key the evening before the move in date for her moving convenience. Should I accommodate her? The rental is ready for move in.

But with grocery delivery starting to become more mainstream it may end up not being much of an issue long-term.

We worked furiously over the weekend to cancel the other order before delivery could happen.

You’ll also need to determine your project delivery method (design-bid-build, design-build, etc). 

Make your offer a good percentage below the last listed price.I use a lead generating program in Maryland, Jacksonville Florida and Dallas Texas - my partners (friends from Bigger Pockets) run the leads that I receive from the radio or TV advertising - using my branded commercials (all leads come to my 800 number, I qualify the lead and call my partner to help get comps, look at the property and delivery the contract of sale that I forward to him or her).