6. Estoppel. Subsection (g) [Maine cite subsection (7)] limits the extent to which a secured party who fails to comply with a request regarding a list of collateral or statement of account may claim a security interest.

§9-1626.__Action in which deficiency or surplus is in issue

(1)__In an action arising from a transaction, other than a consumer transaction, in which the amount of a deficiency or surplus is in issue, the following rules apply.

(a)__A secured party need not prove compliance with the provisions of this part relating to collection, enforcement, disposition or acceptance unless the debtor or a secondary obligor places the secured party's compliance in issue.

(b)__If the secured party's compliance is placed in issue, the secured party has the burden of establishing that the collection, enforcement, disposition or acceptance was conducted in accordance with this part.

(c)__Except as otherwise provided in section 9-1628, if a secured party fails to prove that the collection, enforcement, disposition or acceptance was conducted in accordance with the provisions of this part relating to collection, enforcement, disposition or acceptance, the liability of a debtor or a secondary obligor for a deficiency is limited to an amount by which the sum of the secured obligation, expenses and attorney's fees exceeds the greater of:

(i)__The proceeds of the collection, enforcement, disposition or acceptance; or

(ii)__The amount of proceeds that would have been realized had the noncomplying secured party proceeded in accordance with the provisions of this part relating to collection, enforcement, disposition or acceptance.

(d)__For purposes of paragraph (c), subparagraph (ii), the amount of proceeds that would have been realized is equal to the sum of the secured obligation, expenses and attorney's