Is it ok to have lipo laser or suction with a hypo thyroid? I have been on Synthroid (thyroxine) for a year.

Yes. Well managed medical conditions like hypothyroidism are not a contraindication for surgery. Consult with your local plastic surgeon.
Yes. Provided your hypothyroidism is well controlled, and you have no other medical problems, then you would be a good candidate. Proper thyroid replacement is critical to healing. I have performed hundreds of liposuction procedures on hypothyroid patients, well controlled, with excellent results. Consult with your surgeon for further details and evaluation of your risks and benefits.