Newbie: I need help ! Probate lead

[Jasmine Witherspoon]

I am talking with a seller. So she is the “guardian” of estate of her parents home. (Is that the same as representative??) She is seeing that on websites such as Zillow and trulia the home is worth 150-169k. She is asking the full price. She says she has to present a acceptable offer to the court next month . Does the court really have to approve the amount ? Does the amount have to be what the house is worth? I’m a newbie and unsure what to do in this situation. Maybe just refer her to an agent to sell? 

I also think she has to understand she probably won’t get the full amount anyways because I’m sure the property isn’t updated and the homes being sold around the property for that price are updated . .