While not a very common problem, if you've got it, it can have a terrible impact on your listing: The Messy Neighbor.  If you live next door to a "neglected" property, you might lose up to 20% of your home's market value, particularly with buyers looking for any excuse to reduce their offer.

It's technically not your problem, but ask not for whom the bell tolls.  It's well worth your time and effort to resolve this situation amicably.  Always be respectful, and don't let your emotions get the best of you.

Unless you believe your neighbor is "unhinged," you should begin with a visit to their home and a positive attitude - no name-calling or finger-pointing.  Don't grab everyone on the block and gang up on your neighbor - you'll get better results if you go alone or with one other person.

If you find your messy neighbor is unwilling to take care of their maintenance, it may still be in your best interest to do the work yourself or with the help of other neighbors.  No, it's not fair, but if you want a fair sales price, this may be your only option.

As a last resort, you could file a complaint with your property owners association or city government.  You could be referred to a mediator who will help settle your disagreement cordially.

Larry Weichman is President and Broker of Costa Mesa-based real estate powerhouse Weichman Realtors. Larry and his highly-trained team of professionals have proudly served Costa Mesa since 1976.  For questions about an upcoming sale or purchase, call him directly at 714-241-4532 or email your questions to Larry@TeamWeichman.com. Be sure to visit www.TeamWeichman.com for the latest news and information on the Orange County real estate market.