1.) Tap on More (...) in the lower right of your screen on mobile (iOS/Android) and lower left on cloze.com.
2.) Tap on Settings
3.) Tap on Connected Accounts to expand the section and then tap on the "Add" button and select Real Estate.
Then select dotloop.
4.) Authorize your dotloop account to Connect to Cloze.
If you are not already signed in to dotloop you will first be prompted to first sign and then authorize Cloze.