Please discuss privately with a workers compensation attorney. They will need to know your education, training, work experience, exact job duties you perform, your age, overall physical condition, future employment prospects, and the list just keeps going on. Once they meet with you and see you in person they will probably automatically know whether the proposed settlement is in your best interests. Good luck.
Not legal advice / No lawyer/client relationship.
There are a lot of missing pieces. Did you see a QME? Does the shoulder still bother you? You can only get 104 weeks of Temporary Disability within 5 years of your injury date, so you may want to have surgery within that window if you think you will need it. A 12K offer may or may not be reasonable, but your specific facts would have to be evaluated. You should compare a Compromise (12-15K full settlement) vs. a Stipulation (+/- $3,500 with open medical and further benefits). Obamacare insurance in 2014 does not have pre-existing condition preclusions (shoulder), but will also not pay you Temporary Disability if/when you need surgery.
I represent Employers, but I can recommend Worker Attorneys in So Cal if you ask.
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