@Connor Castillo As a CPA that focuses on Cost Segregation, a solid real estate accountant may be your first need, followed by finding a Cost Seg provider if needed and beneficial to you. (Although I'm a CPA, my focus is the Cost Seg piece, not the tax prep piece.)
Before ordering the report from the cost segregation study, have a conversation with your accountant to see if the added depreciation will be beneficial to you.