The report of the officer providing conservatorship investigation shall contain his or her recommendations concerning the powers to be granted to, and the duties to be imposed upon the conservator, the legal disabilities to be imposed upon the conservatee, and the proper placement for the conservatee pursuant to Section 5358. Except as provided in this section, the report to the court shall also contain an agreement signed by the person or agency recommended to serve as conservator certifying that the person or agency is able and willing to serve as conservator. The public guardian shall serve as conservator of any person found by a court under this chapter

to be gravely disabled, if the court recommends the conservatorship after a conservatorship investigation, and if the court finds that no other person or entity is willing and able to serve as conservator.