Google Analytics Integration and Cleanup

Integrate all my domains/subdomains (total of 20) into Google Analytics. Already started with 4 domains but not not sure they are set up correctly - so cleanup needs to be required so we have full visibility into traffic... (Budget: $30 - $50 USD, Jobs: Analytics, Data Analysis, Data Integration, Data Management, Data Visualization, Digital Marketing, Google Analytics, Google Tag Management, SEO, Website Management)