C.R.S. § 5-10-704: Notice of assignment.

The lessee is authorized to pay the original lessor until the lessee receives written notification that the rights to payment pursuant to a rental purchase agreement have been assigned to an assignee and that payment is to be made to the assignee. A notification which does not reasonably identify the rights assigned shall be ineffective. If requested by the lessee, the assignee shall furnish reasonable proof that the assignment has been made, and, unless he does so, the lessee may pay the lessor.