Any acknowledgment by the buyer of delivery of a copy of the contract shall be a rebuttable presumption of that delivery.
Acknowledgments may contain statements to the effect that "buyer acknowledges that before buyer signed the contract, seller submitted the contract to buyer with all blank spaces filled in; that buyer had a reasonable opportunity to examine it; and that thereafter a legible, executed, and completed copy was delivered to the buyer."
D.C. Mun. Regs. tit. 26, r. 26-C2510