(3) Escrows--(i) Failure to escrow for property taxes and insurance. Except as provided in paragraph (b)(3)(ii) of this section, a creditor may not extend a loan secured by a first lien on a principal dwelling unless an escrow account is established before consummation for payment of property taxes and premiums for mortgage-related insurance required by the creditor, such as insurance against loss of or damage to property, or against liability arising out of the ownership or use of the property, or insurance protecting the creditor against the consumer's default or other credit loss.
I see nothing there that would make you escrow for the lot rental fee. It wouldn't keep you from escrowing for it if you wanted to.
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I'm fixin' to fix that.