It's not specifically prohibited but always suspicious from the perspective of the IRS.   

@Andrew Boettcher my lender won’t be suspicious that I’m trying to break the contract just by asking right?

(I'm still suspicious that the mail house actually sent them but we got some returns and they did verify that it went out, so I don't know...).53218, for example, gets hammered with mail.

So that alone makes me even more suspicious, I can see if there was a typo or something that could cause the error.So, has anybody heard of or even better, worked with these people?

It'd be suspicious if I did it right the first time

These are very suspicious to the IRS and if examined their first thought is going to be that you are "basis shifting" (meaning artificially adjusting the value/sales price to shift the amount of gain for one or the other party). 

It's my experience that you don't fix issues like this that easily, especially in low-income properties, especially with suspicious immigrants who often believe they are being taken advantage of and treated condescendingly/disrespectfully.

Or am I right to be suspicious about this?

I find it just as suspicious that NO negative reviews have been found.

A word to the wise though: I like your style, but your posts in the Forum are suspiciously edging towards direct advertising (by encouraging us to look up your SPONSORED profile) ie. only appropriate for the Marketplace Section.