Need Help Creating A Real Estate Database

Hello,

I need some help creating a real estate database. I need to track specific buildings and the owners of these buildings. This is simple enough but my problem is that there are many people who own multiple buildings. So if someone owns ten buildings then their name, address, contact info etc. is listed redundantly ten times. I would like to avoid this if possible.

What would be the most efficient way to achieve this?

it sounds like redundancy here is a ood thing. if you track a specific building, don't you want to know it's owner, contact information etc?
A little more specificity about what your database is expected to do would be helpful.

Pete