manager, owner, entrepreneur; see administrator, owner.
guard, official, attendant; see guardian 1, warden, watchman.
"keeper." YourDictionary, n.d. Web. 17 August 2018. <http://thesaurus.yourdictionary.com/keeper>.
keeper. (n.d.). Retrieved August 17th, 2018, from http://thesaurus.yourdictionary.com/keeper
A person who is legally responsible for the person or property of another considered by law to be incompetent to manage his or her affairs: