David Johansen
yah any updates? you DO have a written contract with this party which claims if he doesnt pay, you have the right to undo everything done, and/or lien the property for recovery in any such event.
this is why my clients by metal from me, they have an obligation to compensate my work efforts without a 'tender for law'. AND i typically get paid upfront or have a third party hold the payment.
this is why Etherium will be great for those of us who privately contract.