How long after arm lift and lipo do i need to wait to get a mommy makeover?

It’s generally recommended to wait about 3 to 6 months after an arm lift with liposuction before undergoing a mommy makeover. This allows the body to fully heal, swelling to subside, and results to stabilize before performing additional procedures. The exact timing may vary depending on the extent of the first surgery, your overall health, and how well you recover. A thorough evaluation will help determine the safest and most effective timeline.
Erman AK, Dr. MD, Plastic Reconstructive & Aesthetic Surgeon

If the liposuction you mentioned is on your arms, and occurs at the same time as your arm lift, I would wait approximately two months to allow your arms to fully heal, and for you to recover prior to pursuing a mommy makeover.