Change your message to so far as why they would want to sell.Motivations of older people in general:60s to 70: Retire, downsize, travel, spend time with grandkids/kids, buy new toys70s to 80: Leave a legacy to loved ones, protect their nest egg, maintain health. 80s plus: Simply their estate, leave legacy so loved ones will remember them, slow decline in heath, stay out of nursing home or being a burden on family.I have a couple of sources where you can get the age of your prospect if you want to tailor a message to each age group.

We do have some debt to pay off with our cars and a single credit card so could use the money to pay off about 50k in debt and still have a nice nest egg and money for future investment properties.  

Take time to learn, save a nest egg, manage your credit score and pull the trigger.

If you get some appreciation (historically, roughly equal to inflation), you can have a nice nest egg in the future.The decision to keep or sell is just math.

Depending on the size of the nest, it could cost you several hundred dollars to get rid of them for good.

I typically keep it in a 'rental properties only' account and use it as a nest egg should anything come up.

Finally you are going to rely on property managers to manage your nest egg.  

A home is a woman’s place of security, so is money in the bank as a nest egg “in case of emergencies” I personally don’t feel safe with a nest egg in the bank I feel safe with an income producing asset.

In 15 years I would have a very nice nest egg and would pay off student loans and invest in high yield bonds with the rest. 

So that's an extra incentive to keep the nest egg in tact.