I found this cmltdg. I think it answers the question about the AOS. They can't let you apply for the waiver if your not waivable with the aos too.
http://travel.state.gov/visa/laws/telegram...grams_1437.html this is the link to it if you want to read the whole thing.
Baileyj
N9 Waiver Availability for Applicants Ineligible under INA 212(a)
A K visa is a nonimmigrant visa, and therefore K nonimmigrants are generally eligible for INA 212(d)(3)(A) waivers. However, processing an INA 212(d)(3)(A) waiver would not be appropriate unless an immigrant waiver is also available when the K visa holder applies to adjust status to legal permanent resident. To determine whether a waiver is available for a K applicant, the consular officer must therefore first examine whether the particular INA 212(a) ineligibility is waivable for immigrant spouses of American citizens, under either INA 212(g), (h), (i), 212(a)(9)(

(v), 212(d)(11) or (12) or similar provisions. [For a more complete list, see the abridged list of ineligibilities and immigrant waivers at 40.6.]
N9.1 Visa Refusal-No Waiver Possible
[size=3]If the K visa applicant is ineligible for a visa on an INA 212(a) ground for which no immigrant waiver is or would be possible after marriage to the petitioner, then the case should not be recommended for an INA 212(d)(3)(A) waiver and no waiver request should be submitted to BCIS. [See 22 CFR (9 FAM) 40.301.
N9.2 INA 212(d)(3)(A) Waiver for K-1 Fiance(e) Who Would Qualify for a Waiver if Married, or for K-3 Spouse
a. If it is determined that the K visa applicant is ineligible to receive a visa under INA 212(a) but that the ineligibility could be waived after (or as a result of the) marriage to the petitioner, the consular officer should assist the applicant in completing Form I-601, Application for Waiver of Grounds of Excludability, and submit simultaneously both the Form I-601 (with the required fee) and Form OF-221, Two-way Visa Action Request & Response, to the appropriate BCIS office abroad with the recommendation concerning the granting of an INA 212(d)(3)(A) waiver. (If the case involves a K-1 fiance(e), before beginning that waiver process the consular officer should first satisfy him/herself that the petitioner was or is aware of the ineligibility and still wishes to pursue the marriage. If not, the petition should be returned to BCIS and no waiver process commenced.) Consular officers should follow this same general procedure whether the ineligibility is on medical or non-medical bases, while taking into account any variant procedure required in certain medical cases as set forth in 22 CFR 40.11 PN2.
b. When an alien fiance(e) of a person in the U.S. military has been found ineligible and it appears that the benefits of INA 212(h) or (i) might be available once the marriage has taken place, the consular officer should discuss the ineligibility and the waiver possibility with the military officer responsible for granting permission to marry, and point out that BCIS cannot make advance determinations regarding a waiver.
N10 Vaccination Requirements for K Visa Applicants [See 41.108 Notes]
N11 Alternative Classification
The inclusion of INA 101(a)(15)(K) in the nonimmigrant classifications is not intended to prohibit an alien fiance(e) of a U.S. citizen from applying for and obtaining an immigrant visa or a nonimmigrant visa under another classification, if the alien can qualify for an alternative classification. For example, an alien proceeding to the United States to marry a U.S. citizen may be classified B-2, if it is established that following the marriage the alien will depart from the United States. [See Sec. 41.31 N11.1.]
N12 Child of Alien K-1 Fiance(e)
BCIS and the Department have agreed that the child of a K-1 principal alien may be accorded K-2 status if following to join the principal alien in the United States even after the principal alien has married the American citizen fiance(e), and acquired lawful permanent resident status. However, the cutoff date for issuance of a K-2 visa is one year from the date of the issuance of the K-1 visa to the principal alien. After one year, and provided that the alien qualifies, the filing of an immediate relative or second preference petition would be required.
POWELL
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