I've actually paid their fee before and used the colorful software,  no deal came out of it and that $2500 upfront fee is only good for like 1 year.

I think you owe your client - especially those who are new to real estate - the duty to help them find the house that is right for them, whether it be traditional sale,Unless you are voilating Fair Housing Laws (Descrimination based on: race, color, religion, sex, handicap, familial status, and national origin; blockbusting; steering), I don't see any legal obligation to show a property or obligation to do business with a potential client.

Understood, but the deceased heir likely has heirs too...the heir's interest passes down. 

Specifically the color of cabinets with the black granite.

You should join too. The

I have gone through several and all have shown their true colors at some point in the transaction.

While I understand your position (I am a big softy too) the simple fact remains: This woman has made and continues to make bad decisions and needs to get her own act together.

I have a few staging items...rocking chairs on the porch...wine glasses and pretty colorful dishes in the kitchen...nice towels and soaps in the bath...nothing major...but the buyers did not ask nicely for the staging items but informed me  they get them because they were shown in the listing photos and everything in the photo is included in the sale ! 

If each unit does not have their own specific space I would put the patio, chairs and a table or two smaller tables Maybe an arrangement of colorful adirondike chairs (very durable). 

Those vintage tile colors are making a huge comeback in parts of the nation.