Final answer:
A new member of a Joint liability company is indeed liable for their joining, which is True. The claim that proprietors of a proprietary colony only collect profits and have no other responsibilities is False. A limited liability partnership protects individual partners from the debts and liabilities of the company beyond their investment.
Step-by-step explanation:
The statement that a person who becomes a member of an existing Joint liability company is liable for his joining is True. In a joint liability arrangement, all members share the liability for the debts and obligations of the business. New members who join are also liable for any debts or obligations incurred by the company after they become members. However, the new member's liability may be limited to the period after their joining, depending on the jurisdiction and specific terms of the joint liability company.
Regarding proprietary colonies, the statement that the Proprietors have no responsibilities except to collect the profits is False. Proprietors in a proprietary colony had responsibilities that could include governing, administering justice, and upholding the colony's viability, in addition to seeking profit.
Lastly, a limited liability partnership provides benefits such as protecting partners from being personally liable for the company's debts or liabilities beyond their investment in the company.