Hi Mooney,
Unfortunately you may not have a lot in your favour at the moment.
The chances of Parador taking an interest in selling it on are slim and in all honesty the chances of any agent moving are also slim with the market how it is.
The best advice i could give you is communicate as much as possible,try Parador to see if you can get any joy out of them but most importantly get in touch with a lawyer here,let them see the contract and they will tell you your options,i have known builders in the past push back payment by 2,3 or even 6 months so you may be able to try this.
If you need the number of a good lawyer in that area pm me and i will give you the number of my Abogado,he is the best i have ever used and will give you a blunt and honest answer.
In this case speed is of the essence,you need to review your options and make a decision,get the best advice and then you can make an educated decision.
Hope this helps
Georgia