Related for Gittin 103:15

[Legal guardians] shall not sell distant [property] in order to purchase [property] that is nearby, or [sell property] of poor quality to buy [property of] good quality. They may not [involve themselves in orphans'] legal matters, [whether] to hold them liable, to confer a benefit, to earn money, [or] to spend money, except if [the guardians] receive permission from the court (beit din). And the legal guardians must make an accounting with the orphans at the conclusion [of the guardianship], the words of Rebbi. Rabban Shimon ben Gamaliel says, The court does not designate women [manuscript adds "or minors"] or slaves as legal guardians at the inception [of the guardianship]; however, if [the orphans'] fathers designated these during his lifetime, [the court must] appoint them as legal guardians [after the father dies].

[Legal guardians] shall not sell distant [property] in order to purchase [property] that is nearby, or [sell property] of poor quality to buy [property of] good quality. They may not [involve themselves in orphans'] legal matters, [whether] to hold them liable, to confer a benefit, to earn money, [or] to spend money, except if [the guardians] receive permission from the court (beit din). And the legal guardians must make an accounting with the orphans at the conclusion [of the guardianship], the words of Rebbi. Rabban Shimon ben Gamaliel says, The court does not designate women [manuscript adds "or minors"] or slaves as legal guardians at the inception [of the guardianship]; however, if [the orphans'] fathers designated these during his lifetime, [the court must] appoint them as legal guardians [after the father dies].

[Legal guardians] shall not sell distant [property] in order to purchase [property] that is nearby, or [sell property] of poor quality to buy [property of] good quality. They may not [involve themselves in orphans'] legal matters, [whether] to hold them liable, to confer a benefit, to earn money, [or] to spend money, except if [the guardians] receive permission from the court (beit din). And the legal guardians must make an accounting with the orphans at the conclusion [of the guardianship], the words of Rebbi. Rabban Shimon ben Gamaliel says, The court does not designate women [manuscript adds "or minors"] or slaves as legal guardians at the inception [of the guardianship]; however, if [the orphans'] fathers designated these during his lifetime, [the court must] appoint them as legal guardians [after the father dies].

Rabbi Shimon ben Elazar says, [with respect to] orphans that were supported at the place of a landowner, or that were supported by their fathers [even though their fathers were not made their legal guardian (אפוטרופוס), see Minchat Yitzchak], or that were supported by the Beit Din, [those that support them] tithe [the produce that the orphans eat] and feed them for the sake of tikkun olam (the betterment of the world). And in the same way, Rabbi Shimon ben Elazar says, an orphan who is a Levite that was raised at the place of a landowner, [separates] tithes (מעשר not מעשה) and feeds him for the sake of tikkun olam. If [the orphan] was learning [a craft] at the place of a Levite or a Kohen or a poor person, behold, he should feed him out of that which is his (i.e., the landowner's). If he was the son of his wife who is a Kohen or Levite or poor person, behold, he feeds him from his (i.e., the orphan's) own portion.