Shared wells are acceptable as long as there is enough volume of water to service all of the homes using the well water resource.
Remember that the maintenance is usually shared as well (no pun intended).
also, even though the well is shared and the other residents using it find it ample,if you are purchasing a home and are bringing livestock like horses, this may put additional stress on the water available. If the residents around you are aware of that, then there may be a restriction placed on the well that does not allow you to use it for that reason and for that purpose.
I would also recommend strongly that you have a well flow test done to determine the quality of the water and volume the well delivers.
Your Realtor should be able to help orchestrate this for you.
Any further questions you know where to reach me.
Signature Realty Group
2008-2009 Master of Real Estate Award
Looks like part of your question was cut off, but if you're asking whether or not you should eliminate any and all homes that have a shared well, I wold recommend that you NOT do scratch them just because of the well. It really depends on location of the well, capacity, how many are on it, the shared well agreement between homeowners, etc. Your Buyer's Broker Realtor might be able to help you with checking them out, but if you end up with a contract on a house with a shared well, they will be required to furnish you a copy of the well agreement. The main thing to keep in mind is that you do NOT want to tackle a contract on residential property without the assistance and representation of a Realtor that is in your corner and representing you exclusively. Does that help?