Del. Code Ann. tit. 6, § 17-304
(a) Except as provided in subsection (b) of this section, a person who makes a contribution to a partnership and erroneously but in good faith believes that he or she has become a limited partner in the partnership is not a general partner in the partnership and is not bound by its obligations by reason of making the contribution, receiving distributions from the partnership or exercising any rights of a limited partner, if, within a reasonable time after ascertaining the mistake:
(b) A person who makes a contribution under the circumstances described in subsection (a) of this section is liable as a general partner to any third party who transacts business with the partnership prior to the occurrence of either of the events referred to in subsection (a) of this section:
6 Del. C. 1953, § 1711; 59 Del. Laws, c. 105, § 1; 63 Del. Laws, c. 420, § 1; 65 Del. Laws, c. 188, § 1; 70 Del. Laws, c. 186, § 1