All Good Things May Come To An End
The best way to avoid heavy legal fees and controversy is by setting up the terms of the business by contract in the beginning, when things are cordial. A good start is Tad Crawford's book on "Business and Legal Forms for Photographers," available from Amazon by clicking in the "Recommended Reading" box in the right-hand column here. But it's always best to get an attorney to review your specific circumstances and tailor the contract.
Whatever you do in business, it's best to have a bit of pessimism when you are most optimistic.
Take my advice; get professional help.
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