Need the best all in one software for self managing

[Zachary Reiff]

Anyone have tips on the best all in one self management software? I am starting out with a 4 unit apartment building, lower commercial space and duplex. The plan is to get that under my belt then continue to build aggressively. I'd like to stick to one software and familiarize myself with it prior to the aggressive build. All in one and optimization is key for me. Any tips?