Section 6. If after citation has been issued by the probate court to a public administrator upon the estate of a deceased person, administration shall not be granted to him for the reason set forth in the preceding section, or because of the finding of a will of the deceased, the judge, if satisfied that the person taking out said citation has acted in good faith and for the best interests of the estate, or by designation of the division of medical assistance pursuant to subsection (e) of section thirty-two of chapter one hundred eighteen E may allow him just and reasonable compensation for his services, and reimbursement for expenses actually incurred, out of the assets of said estate.