Make sure the listing tells people if you know how long it will take the court to approve. Most of my customers only give a 24hr turnaround for their offers, because they don't want to get scooped by someone else.
How long ago was the appraisal? Was the appraiser local and well known?
I had a listing last year who just this home appraised for a refinance. The appraiser was from 90 min away, and used comps that were not comparable. They placed the value about $70k above market. Because the sellers believed the appraiser was the expert and the REALTOR was not the house is still on the market, over a year later, and still overpriced.
The bottom line is, if it is not selling something needs to change.
Any property will sell at the right price. You do not mention if you have hired a Realtor. It sounds as though you have not. I strongly recommend you interview at least two Realtors. If you tell the court that you are selling them on your own you will probably have a crediblity issue.
Courts have judges and attorneys. Real Estate has Realtors. Don't mix professionals with lay people. (Just my opinion)
Make sure the listings are complete and describe the properties in the best way possible. Make sure the commission you're paying is competitive with what other agents may be expecting. (It's unclear from your posting whether the properties are listed with an agent, or if you're trying to sell them as a FSBO.) If the properties don't show well (and many owned by elderly people don't), you might invest a bit of money cleaning them up--paint, carpet, etc. Even consider staging them. Make sure the properties are easily accessible by agents.
Hope that helps.