Stay there? Sure, that normal. 2 to 4 weeks are common limits.
In most cases no person may live,permanently, in a 55 plus community unless they meet the age requirement. There are restrictions on number of days anyone,family,friend,tenants may occupy the property.
Please check your condo docs and work closely with your REALTOR.
Good luck to you.
Generally speaking, one person in the family must be 55 or older to live there or stay there for any period. As to children you will have to check the rules and regulations.
Larry Halpin / http://www.OurNaplesRealEstate.com