Past employer creating problems

[kufloyd]

My sister in India is planning on coming to the US on a fiance visa. She recently quit her job of the past 1.5 yrs due to a sprained neck. However, her employer created several problems for her as she was trying to quit. Long story short, they now want her to pay them approx $1000 if she wants an 'experience letter' saying that she worked in the company. If she doesn't pay, she won't get that experience letter.

She doesn't care about the experience letter except that she's worried USCIS might try and get in touch with her company as part of processing her K1 and the company might say (out of vengeance) that she wasn't employed there; or, that she might have problems during the visa interview, because of this whole employer problem.

My question is: does USCIS really care to try and contact the employers listed on her G-325 form? She has paystubs and income tax reports with her to prove that she did work at the company; she just doesn't have an official letter saying she worked there.

I would think that since this is a fiance visa, what they really care about is how serious she is about coming to the US and marrying her fiance, but wasn't sure if they do some sort of background checks on her past employment history...

thanks.