Marrying will not help at all...since the company is sponsoring ur greencard it only applies for u......after u get ur green card then only u can apply for ur husband which will take many more years.....so i dont think its worth to wait that long...better he find a job and try to find a h1b and possibly green card sponsor himself...... plus ur green card is also not in hand ...ur greencard will itself take so many years if EB3 category...so its a waste of time and energy