Maryland Estates and Trusts Section 13-216

      (a)      If the exercise of a power is improper, the guardian is liable for breach of his fiduciary duty to the minor or disabled person or to interested persons for resulting damage or loss to the same extent as a trustee of an express trust.

      (b)      The rights of purchasers and others dealing with a guardian shall be determined as provided in § 13-219 and are not necessarily affected by the fact that the guardian breached his fiduciary duty in the transaction.