If you do not want them coming after you personally then you will need to incorporate or do an LLC. My suggestion is that you do an S corp and you can do this online without an attorney at the link below. An S corp will protect you from personal liability and will allow you tax savings so that you are taxed just like a partnership and not taxed twice like a C corp.
If you go this route, then you do not need to file an assumed name certificate if your corporate name is XXXXX XXXXX you plan to use for your business.
There are other links that offer the same service, just check it out on Google.
DISCLAIMER: Answers from Experts on JustAnswer are not substitutes for the advice of an attorney. JustAnswer is a public forum and questions and responses are not private or confidential or protected by the attorney-client privilege. The Expert above is not your attorney, and the response above is not legal advice. You should not read this response to propose specific action or address specific circumstances, but only to give you a sense of general principles of law that might affect the situation you describe. Application of these general principles to particular circumstances must be done by a lawyer who has spoken with you in confidence, learned all relevant information, and explored various options. Before acting on these general principles, you should hire a lawyer licensed to practice law in the jurisdiction to which your question pertains.
The responses above are from individual Experts, not JustAnswer. The site and services are provided “as is”. To view the verified credential of an Expert, click on the “Verified” symbol in the Expert’s profile. This site is not for emergency questions which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service (last updated February 8, 2012).