New2grammar“She is a mother of three who likes to go swimming in the mornining, who has been married for 6 years, and who has lived in five different countries.”
This is fine, but I think the original poster was talking about the use of several different relative pronouns, not the use of one pronoun multiple times.

New2grammar“CJ. I think I should create a thread for this for my own record.”
Please do if you feel it's necessary.

CJ