Very_44_EP

Yeah, that is true. Was planning to Frame any letter as "2 kids makes travel hard so we will not be able to visit Mexico family in the near term; so thanks for coming to visit!" But, yes, it does sound like we are looking for a free nanny.

Yikes, is the suggestion that Customs will decline entry even while the visa is still valid?

Yeah, that was my assumption on the record being in the system. Seems like some local "advisors" are trying to take money for nothing, and she will need to wait 6/12-months and reapply (maybe with the letter of invitation). She expires 12/1; so we can change her ticket and she can still visit, just not when initially planned. My impression was that the specific reason was provided or they focused on it during the renewal interview and the SIL inferred from the questions that was the issue.

B2 renewal for sister-in-law (28F) was declined based on her initial successful B2 interview occurring 1-day before her 18th birthday. Consulate claims that that was a red flag -- leaving aside the last 10 years of not violating her visa during various visits. Seems specious, but what can you do. Wife, her sister, is heartbroken. Local guidance she received is that she should reapply for renewal ASAP at a different consulate/embassy (in a different Mexican state) -- seems unlikely to me, but what do I know. Any likelihood of hope that she can get renewed in a few months to visit during the birth of her new nephew in November? Would a letter of invitation help or has the ship sailed in the near term?

No, this is not income and would not be reportable as income. It may be reportable for other reasons -- i.e., if you have significant foreign holdings -- but the transfer is not reportable by you. By all means, retain your egyptian documentation, but there is no income to report.