SYLMAR - After learning that 25 registered sex offenders were living in a local motel, Sylmar residents took to the streets, protesting with handmade signs and booming megaphones until state officials relocated the parolees. Now, some say a proposed measure on the Nov. 7 ballot would create similar clusters of sex offenders in communities around California. Proposition 83 - also known as Jessica's Law - would prohibit registered sex offenders from living within 2,000 feet of schools, parks and similar locations. With communities now striving to make themselves as family-friendly as possible, officials say offenders will find themselves limited to...