I suspect whether you will be able to get an undergrad law degree from US within a year based on your credits transferred from Nepal. Usually, they look at all the subjects you have done in Nepal and try to match that with their bachelor degree requirements. You will have to complete the balance in the US. Each university will come up with different credits for your Nepali degree as it is mostly subjective judgement by the colleges. To make the matter worse, law degrees in Nepal and US might be very different obviouly being in different juridictions. On the other hand, you may get some credits for your long work experience.

But you never know if you don't try. Good luck.