Owner's IS the possessive for owner. The apostrophe and -S make it possessive. The possessive for the plural owners would be owners'
The possessive form of the plural noun managers is managers'.Example: The managers' salaries are not much higher than ours.
The possessive form of the plural noun cars is cars'.Example: All of the cars' owners have been notified.
The plural form of the noun owner is owners.The plural possessive form is owners'.Example: The land owners' meeting made a decision on access rights.
The plural form of the noun 'property' is properties.The plural possessive form is properties'.Example:All of the properties' owners have been compensated for the damage.
The possessive form of the plural noun dogs is dogs'.The dogs stay:in a dogs' kennelin the dogs' housesin the dogs' owners' housesin the dogs' cages at the pet shop
The noun 'aircraft' is an uncountable noun. The singular and the plural possessive form is aircraft's.EXAMPLESOne aircraft's owner has not paid the airport fee. (singular)All of these aircraft's owners are delinquent in their fees. (plural)
The plural form for the noun auto is autos. The plural possessive form is autos'.Example: Both of the autos' owners had let their insurance lapse.
The plural form of the noun boat is boats.The plural possessive form is boats'.Example: The boats' owners came to assess the damage after the storm.
The plural form is ranchers. The plural possessive is ranchers'.
The possessive singular noun is explorer's. The possessive plural noun is explorers'.
The possessive form for the noun coyote is coyote's.
The possessive noun of "preacher" is "preacher's."