XXXXXX,
It sounds like you could benefit from some family therapy to help you and Michelle support each other's parenting styles and to help Lila have more consistent limits and rules. When parents don't support each other and don't enforce the same rules, kids can become confused and start to manipulate the limits by pitting parents against each other. This can lead to strained relationships both between the parents and between each parent and the child. It also can lead to an enormous amount of stress within the child.
Finding a psychologist to work with in a family therapy setting can help you and Michelle work better together as a team and also help Lila respect both of you and your parenting styles (and gain a sense of predictability about what's okay and what's not).
Psychologist
Doctorate in Clinical Psychology, 10 years experience working with individuals, couples, & families