The best parts I will keep and I'll dig a bit deeper through these forums and youtube for any pearls of wisdom I might want to include in the contract.

We might have been able to dig a hole and find the gas line confirming where it was and removed the fence, The driveway for the neighboring unit went all the way around the property, so they could have used the West entrance for a day or 2.  

You have to dig a hole for new construction anyway. 3.

Tell them what you want done (Spanish helps here) and taking them to the property and tell them how big and deep to dig. A

Ben Wilkins thanks for the advice, I will take that for now and dig a little deeper.

Being the ignorant person that I am, I would merely jack the house up maybe a quarter of an inch at each pier location and then dig a hole maybe a foot deep and about 14" square then lower the pier back down and repeat.

You can dig a little deeper and find the owners phone details and give them a call, or you can send them direct mail.

The alley was susceptible to rutting because the gas company has to dig a couple huge holes in the middle of it to expose the gas lines.

May just have to spend more on marketing or dig a bit deeper. 

If you are using a big title company you might have to dig a bit to find the right person who even knows what you are talking about.