If that's what happened in your situation I think that when the first house was sold by the common owner an implied easement for the continued use of the line may have been retained by the seller. 

This will be installing hardscapes such as paver patios, driveways, walkways, acsent walls, structural retaining walls.I want to be able to show the customer what the finished product will look like with 3D renderings.

Generally, the coverage of the policy will state; “The coverage of this policy shall continue in force as of Date of Policy in favor of an Insured after acquisition of the Title by an Insured or after conveyance by an Insured, but only so long as the Insured retains an estate or interest in the Land, or holds an obligation secured by a purchase money Mortgage given by a purchaser from the Insured, or only so long as the Insured shall have liability by reason of warranties in any transfer or conveyance of the Title.”

If these were an pool of mortgages owned by a typical financial institution, or an MBS pool, the investors typically retain the underlying interest in the pool even if the servicing institution goes belly up. 

Wouldn't hurt to have one on retainer for after you move someone in.

In some cases, these unique or trendy features may significantly increase the value of a property, regardless of its size, making it essential for both buyers and sellers to stay informed about the current market trends and their potential impact on property values.The Importance of Maintenance:Well-maintained properties, regardless of their size, tend to retain or increase in value over time due to the positive impact of a well-maintained appearance and functionality.

Common fees will include a set-up fee, leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

I retain ownership of the land, but will allow investors ownership of structures.

But a number of these companies require you to retain them to manage your property, at substantial commissions, in order for your guests to be eligible to utilize the amenities.AVOID THESE AT ALL COSTS. 

The settlor retains only an interest in the income so the assets are supposed to be safe and the income goes into the LLC so it should have charging order protection.