The assignee shall have full power, except as otherwise provided in this chapter, to sue for and recover in his own name as assignee, all and singular, the estate, property and effects, real and personal, and amounts owing upon choses in action, and to execute and give releases, acquittances, and discharges and generally to do all manner of things requisite and convenient for the speedy and effectual collection of the estate which the assignor or assignors might or could have made, given, or done, if such assignment had not been made.