Allow me to congratulate!
1. Does the artist provide a meeting place, workshop (and if no?), In the apartment (and it is convenient to all?), In the gallery (and who will pay for services gallery ?)...
Workshop - the best option.
2. To what amount of the transaction can meet in the subway (the subway, in the car)?
See the answer to the first question.
3. Should a meeting occur inevitably during the day? In order that the buyer had no doubt that the next morning the picture will get other colors in the daylight? And if the buyer comfortable night?
Not fundamentally. At the discretion of the buyer.
4. Should an artist and as a packed schedule on paper? canvas on a stretcher? Cardboard?
5. Since some amount of the transaction is to issue a certificate of authenticity to the picture?
6. What amounts should be a contract of sale specifying the rights and responsibilities?
7. Obligated to sign an artist all his work on the front side, on the back?
At the discretion of the artist and the buyer (if asked).
8. Is there a refund picture? Under what conditions?
Absolutely, if it is not custom work.