1) Who actually owns the painting?
I retain all rights to all artwork I create.
This includes the rights to the image of sold & commissioned original paintings. 
I retain the right to make reproductions of any and all artwork I create unless the Collector has purchased the full or partial rights to the artwork (this is in addition to purchasing the original).
The Collector or buyer may not reproduce the artwork in any way without written permission.
If the artwork ends up being reproduced in a magazine or other media I only ask for credit (And congratulations!  That means your home is super beautiful!).
When you purchase an original painting you, the Collector, have the right to display the artwork in your home or business (hooray!) but the artwork may not be resold or reproduced without my written permission.
Please let me know if you are interested in purchasing full or partial rights to your painting. 
Some collectors choose to purchase my right to reproduce the artwork to ensure it will never become a print.  I am totally happy to discuss that with you if you would like!