Divorce, retirement, tired of landlording, a job move, better opportunities, tax issues, are just a few.  

To know if you have a real buyer or tire kicker ask for a bank statement in their name they have the funds to buy.

@Martin Shlakman and @Richard F. unfortunately I have a full time job that's very busy and I've been horrible at time management lately and didn't get a chance to go search for those stores and just gave in and bought everything new from Sears online, actually I was able to accomplish my goal of not passing a certain price point where I couldn't with anyone else, but I should have asked my plumber about appliances discounts, when you're stressed and tired and don't keep calm the simplest and obvious things are not that obvious!

Plus, I got tired of Uncle Sam bleeding me dry every tax year.  

Maybe send out some mail to tired landlords of small multi's and you'll possibly find a gem near you that you just haven't uncovered yet

We are tired of relying on others to donate and support orphanage projects. 

I had a few tire kickers but I received a call from a lady in San Francisco who owned 40 acres with no access in Northern California.  

I know everything is negotiable sometimes but I don't like to waste time kicking tires.

We bought the property from a tired landlord who was at the end of his rope dealing with the tenants he had in place which is why we were able to buy it at a good price. 

1. mail carriers know when people are moving and where the vacant houses are.2. code violations3. eviction court, tired landlords4. lawn service, vacant house5.