The Core Principle
As long as you have a properly executed Loan Agreement in place, your claim is enforceable by law - regardless of your position on the title.
And as long as something is registered on the property title - whether it is a first mortgage, a second mortgage, or a caveat - you have a meaningful legal claim over the asset itself. The property cannot be dealt with without your knowledge and consent.
The four protections work together. None of them alone is as powerful as all four combined. The title registration gives you the asset. The loan agreement defines what you are owed. The Funds Direction Notice ensures you receive payment. The personal guarantee means you can pursue an individual if the company cannot pay.
When all four are in place, you are in a strong position.