Use of possessives in "of" prepositional phrases

The object of the preposition of should not ordinarily be a possessive form, since the of phrase as a whole expresses possession.

Rewrite the sentence to avoid the possessive form in an "of" phrase.

D: She was referred to a colleague of mine's clinic for evaluation.
T: She was referred to the clinic of a colleague of mine for evaluation.

D: One of her friend's sons was in a car accident.
T: The son of one of her friends was in a car accident.

D: She was found by one of her friend's daughter.
T: She was found the by the daughter of one of her friends.

It is acceptable to retain the possessive object of the preposition of when it is the name of a person.

He is a friend of Susan's.
Dr. Jones is an associate of Jim's.

The use of possessives are used and acceptable in a few idiomatic expressions.

That stomach of yours is going to need a workup.
The old hospital is a favorite of mine.
Tom and Susan are good friends of ours as well as our children's.