is legal a deal with slave auktionar as a rl deal with signature is legal in sl or not?

[Pixieplumb Flanagan]

No.  

[Pixieplumb Flanagan]

No.  

[Innula Zenovka]

If the slave wants to walk away with the cash, then there's nothing to stop him or her.   Though the auction house and RP group will probably ban him or her for doing it.    

Personally i think that the slave should return the money if she or he doesn't want to complete the deal, but LL aren't going to get involved.