Trustee may not buy beneficiary's interest without permission

Trustee may not buy beneficiary's interest without permission.—No trustee, and no person who has recently ceased to be a trustee, may, without the permission of a principal Civil Court of original jurisdiction, buy or become mortgagee or lessee of the trust-property or any part thereof; and such permission shall not be given unless the proposed purchase, mortgage or lease is manifestly for the advantage of the beneficiary.