(1) Maintaining, defending or settling an action or proceeding;

(2) Holding meetings of its partners or carrying on any other activity concerning its internal affairs;

(3) Maintaining bank accounts;

(4) Maintaining offices or agencies for the transfer, exchange or registration of the limited partnership's own securities or maintaining trustees or depositories with respect to those securities;

(5) Selling through independent contractors;

(6) Soliciting or obtaining orders, whether by mail or through employees or agents or otherwise, if the orders require acceptance outside the State of Delaware before they become contracts;

(7) Selling, by contract consummated outside the State of Delaware, and agreeing, by the contract, to deliver into the State of Delaware, machinery, plants or equipment, the construction, erection or installation of which within the State of Delaware requires the supervision of technical engineers or skilled employees performing services not generally available, and as part of the contract of sale agreeing to furnish such services, and such services only, to the vendee at the time of construction, erection or installation;

(8) Creating, as borrower or lender, or acquiring indebtedness with or without a mortgage or other security interest in property;

(9) Collecting debts or foreclosing mortgages or other security interests in property securing the debts, and holding, protecting and maintaining property so acquired;

(10) Conducting an isolated transaction that is not one in the course of similar transactions;

(11) Doing business in interstate commerce; and

(12) Doing business in the State of Delaware as an insurance company.