Minn. Stat. § 322.11

A contributor to the capital of a business conducted by a person or partnership erroneously believing that the contributor has become a limited partner in a limited partnership is not, by reason of the exercise of the rights of a limited partnership, a general partner with the person or in the partnership carrying on the business, or bound by the obligations of such person or partnership; provided, that, on ascertaining the mistake, the contributor promptly renounces interest in the profits of the business, or other compensation by way of income.