What are potential risks to lending the equity from my land to another investor?

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An investor has come to me asking to use the equity from land I own. I own this land free and clear and the investor is going to get a 12-24 month construction loan. At the end of this time frame the lien is removed from my land and I will be paid a fee for lending the equity.

What are the potential risks of losing this land if something falls through with his construction loan?
I am new to development, Is this a common practice in larger developments?