While you will be a good candidate for tummy tuck at 5'2" 300lbs. your risk of surgery is too high. If you want to consider any surgery safely you must get well below 200. While this is disappointing it is without doubt in your best interest.I hope you can achieve a healthy weight loss.
Thank you for your question and photo. You will eventually be a candidate for Tummy Tuck / Liposuction. First, we recommend you lose weight by being on a healthy diet and get your BMI below 30, and being within 10-15 pounds of your actual goal weight. Your body needs protein, iron, nutrients and yes, even fat, to recover properly. Eat healthy, don't go crazy cutting calories and you will achieve this goal in order to move forward with surgery. Make sure you consult with a Board Certified Plastic Surgeon to discuss and personalize a treatment plan that works best for you.