Yes. You will be able to identify the additional funding sources for your proposal on the form.
Yes. One of the collaborating organizations must be the “lead organization,” applying on behalf of the collaboration. The lead organization must be willing to take on all the potential rights, responsibilities, restrictions, and liabilities of the grant if it is received.
Impact100 disburses the grant money as a one-time payment or as an installment payment, depending on what they deem to be the most fiscally responsible. A grant applicant may request either type of payment in the application.