You can try and negotiate an early termination of the lease but if the landlord is not willing to do that you may wind up liable for any damages associated with your breach.
You may also want to consider looking for someone to sublease the space if that is not prohibited in your current lease, as that could reduce or eliminate the financial impact of you leaving the space.
Bottom line is that as a sole proprietorship you very well may find your personal assets at stake when it comes to obligations associated with your business. Consider meeting with a lawyer to discuss incorporating as an LLC or Corporation to reduce your personal exposure on issues like this in the future.
Legal disclaimer: The answer provided above is for general information purposes only and should not be relied on as specific legal advice. This answer does not form an attorney-client relationship. You should consult with an attorney of your choice to fully advise you about your legal rights and obligations.
I agree with my colleagues. Negotiating an early termination would be the best option to facilitate termination of the lease without accruing personal liability and endangering personal assets.
You should seek the advice of an experienced attorney to help you identify your legal rights and remedies and to help you develop a strategy to deal with your particular set of circumstances.
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