Complex sentence: In a limited partnership the general partners manage the firm while the limited partners may not and should limited partners do so then they become personally liable for the debts of obligations of the firm in the same manner as a general partner.
Split into simpler sentences: In a limited partnership the general partners manage the firm while the limited partners may not. And should limited partners do so, then they become personally liable for the debts of obligations of the firm in the same manner as a general partner.