Bookkeeping for solo lawyer

Hi there,
I have a lawyer client that I do bookkeeping for. I am having a hard time finding an accounting program that will properly (and efficiently) track the trust accounts/funds as well as their business income and expenses.

I am currently using Time:59 to invoice and track receivables and trust balances. Then I use QuickBooks to track the business transactions, and plug in the balances from Time:59. This just seems so inefficient. I'd LOVE to find an accounting program geared toward small legal firms.

Any ideas or thoughts at all?
Thank you!
Holly