Using Quickbooks in conjunction with rainmaker share

Hi folks, first time posting here. Situation: our firm comprises two of us (previously four but two got frustrated and left). We are set up such that income generated by the firm (invoiced and paid) is split as follows: 20% to rainmaker, 20% to firm for overhead, and 60% to the person who billed the time.

We are currently using a software program that one of the partners created to break down each matter into these amounts but it's cumbersome and time consuming to update, causing frustration with respect to infrequent pay outs.

Questions: 1) is this something that can be readily done in quickbooks 2) how does your law firm divide up income and then keep track of it?