Wow! Thank you for all the responses. I was out doing round 3 of the RMN deal.
The responses are giving me a lot to think about. I'll post back today with more info/questions.
@Lain, I think I already listed all the cards but maybe I just think I did and I need to do it later today. If I am an AU that would affect my X/5 number wouldn't it? Those 2 dumb retailer CCards DH opened were mainly for me, so I'm holding both of them too.
And is there a preferred Chase business card we should be researching? Or does it just depend on our situation? He's reluctant to do more with Chase at the moment since 1) he did the DD in July and it hasn't been that long and 2) he wants those points to post first.
1. If the AU is for a card opened in the past 24 months, it’ll likely count against you. The best way to check is probably pull a copy of your credit report, or check your credit reports on Credit Karma (which pulls the data from Equifax and TransUnion), look at your card accounts and count the ones opened in the last 2 years.
Although you mentioned that two are store cards, they may or may not be reported, and will likely count if issued by a bank. If a store card puts you at or over 5/24, you could recon Chase and ask they disregard the cards as store cards only. But DPs are mixed whether the Chase rep will not count them.
2. Chase has 3 Ink business cards, the Preferred (CIP), Cash (CIC), and Unlimited (CIU).
@calypso726 @SouthFayetteFan and others had a very detailed discussion weighing the benefits of each card last week. Just do a search.
One basic way to look at which card to get (first — because if you plan it right, you can eventually get them all), is do you value the initial signup bonus or the ongoing earning ability of the card?
The CIP has the biggest signup bonus with 80k UR and the ability to refer at 20k per approved signup, but it has a $95 AF and a severely nerfed 3x UR bonus category now that Chase killed Plastiq earning 3x UR on the CIP. Remember,
@Haley R and her husband signed up for just 1 CSR and 2 CIPs, with her DH signing up first then referring her for a CIP, and had enough points for 2 business class RT tickets to Japan, a hotel, and points left over.
The CIC and CIU don’t have AFs, but each card currently offer a 50k UR signup bonus (with no ability to refer), so an awesome deal on no fee cards. The CIC is a potential UR-earning machine, because it earns 5x UR on up to $25k/year in spend on, particularly, office supply stores. Office supply stores like Office Depot, Office Max, and Staples sells prepaid VGCs, MCGCs, and third-party gift cards like Disney,
Amazon, gas, restaurants, retailers, etc. You’ve been doing RMN — all those gift cards you see at Staples? You could be earning 5x UR on them and passing on that category bonus to whatever merchant you buy a gift card to. The CIC also earns 5x on a gift card app called Gyft when using it through PayPal checkout, which can save you a trip to the office supply store.
Totally understand your DH wanting to space out his next app after a Sapphire double dip and waiting for those points to post first.
Only have 3 $500 cards left. 
Total cost to transfer is 70,000 Avios + $45, which would put it at 1.709 cpp. TPG values at 1.5 cpp, but wanted to hear other people's valuations. Good? Not good enough? United wants 214k to 230k miles. 
