My Question/s about Covid 19 (2020) Stimulus Eligibility

Thanks and Update

April 7, 2020

Thanks for your time and help.

Based on answers from various friendly and helpful community contributors, I conclude that 1040-NR filers for both 2018 and/or 2019 tax years are not eligible.

But a new point has been brought up by some about SSN / ITIN / Authorized to Work etc. and now not clear whether Spouse and child / children with only ITIN of the Tax payer with SSN are eligible for the stimulus or not.

Regarding my MFS question, it is not so much about tax efficiency of the MFS v/s MFJ, but the facts are MFJ of 2018 had income far greater than $200,000 so either spouse not eligible for stimulus.  But one of the MFJ of above 2018 ineligible spouse decidedly filing MFS in 2019 with income below $50,000 qualify for stimulus based on 2019 though not qualified due to 2018 MFJ?  

Any thoughts / clarifications / updates would be highly appreciated.

Thanks and Regards.

Raj1