Hi Mooretra - with regards to the power of attorney, here in Spain they are very specific and only useable by the person it is granted to. The use can be wide ranging ie to fully buy a property, open bank account, sign mortgae on your behalf, or they can be very specific. Usually they are date open ended. Do you have a copy of it? If so ideally you need to cancell this so you are back in control. The POA may have been made to another person in the firm and therefore they can still act on your behalf.
Once cancelled or ideally before, you need to engage another lawyer who can help you. Inform your old ones in writing and by registered post, that you are no longer instructing them. You may lose all or any money paid to them upfront, if you havent paid, even better!
And yes, if the development was ready to comlete then they would be chasing for completion although this may have been done via your lawyer
What development and where are you based as either myself or other members of this forum could advise a new lawyer for you
Kind regards