3600rs

Where is he from is not relevant... Laziness is a citizen in every country! He got is 10 year green card and will be ready for 3 year citizenship soon..maybe this year or the next. Do not divorce him and prolong his citizenship. Stay married, give him his citizenship and then divorce him.
your I864 ends with fulfilling one of the below:
1. working 40 quarter credits. Thats lots of work when laziness is a virtue. NOT POSSIBLE
2. he dies. he could blame you for his death. NOT POSSIBLE
3. He abandons the green card...he is here to stay. NOT POSSIBLE
4. he is removed from the US....I dont see a non criminal leech being removed. NOT POSSIBLE.
5. Becomes a USC....POSSIBLE!
Divorce will not end your 864 obligations, on the contrary it will extend them by 2 additional years. Hopefully he is intelligent and hardworking to pass the citizenship exam. If he is notoriously lazy then you are looking at a good night sleep only till be gets US citizenship.

Thanks BobbyUmit.

Its the quality and not the quantity that is seen. You could have 1000 pages of cloudy evidence to confuse the USCIS, or you could have 10 pages of convincing evidence to satisfy the USCIS. Suggestions are important, but remember they are suggestions and not demands. If the officer is not satisfied you'll get an RFE. So, yes it depends on the officers, some are satisfied easily, some are not.