Once I Achieve the Growth I Want, Can I Go on a Maintenance Schedule and Only Use It Every Other Day or Once or Twice a Week?

After week 16, you'll see the full effect of Latisse solution. After that, you can talk to your doctor about ongoing use. Generally, a maintenance schedule such as the one you mentioned should be sufficient to maintain your lashes. 

The answer is yes. Many of my patients do just that. However, the way you alter your regimen is totally up to you and will vary from person to person. Give it a try