38 C.F.R. § 36.4286
(b) In taking security required by 38 U.S.C. 3712 and the § 36.4200 series, a holder shall obtain the required lien on real property the title to which is such as to be acceptable to prudent lending institutions, informed buyers, title companies, and attorneys, generally in the community in which the property is situated: Provided, That a title will not be unacceptable by reason of any of the limitations on the quantum or quality of the property or title stated in § 36.4253. If such holder fails in this respect or fails to comply with any of the requirements of 38 U.S.C. 3712 and the § 36.4200 series with respect to:
(11) Any other requirement of 38 U.S.C. 3712 or the § 36.4200 series which does not by the terms of said section or regulations result in relieving the Secretary of all liability with respect to the loan,
no claim on the guaranty shall be paid on account of the loan with respect to which such failure occurred, or in respect to which an unwillful misrepresentation occurred, until the amount by which the ultimate liability of the Secretary would thereby be increased has been ascertained. The burden of proof shall be upon the holder to establish that no increase of ultimate liability is attributable to such failure or misrepresentation. The amount of increased liability of the Secretary shall be offset by deduction from the amount of the guaranty otherwise payable, or if consequent upon loss of security shall be offset by crediting to the indebtedness the amount of the impairment as proceeds of the sale of security in the final accounting to the Secretary. To the extent the loss resultant from the failure of misrepresentation prejudices the Secretary's right of subrogation acceptance by the holder of the guaranty payment shall subordinate the holder's right to those of the Secretary.