1. Might want to mention that some of the spending caps are the same between bonus categories, ie. office supplies and phone/internet bills are both $25k on the IC but it's the same $25k, you don't get $25k for each. In the chart, it seems like they're independent.
2. You might want to make the distinction that while you can transfer UR-UR to multiple AU's, you can only transfer UR-FFN to one of your AU's FFN and then you can never transfer directly to another AU's FFN ever again. Although maybe that's a bit much for this post.
3. "The card offers $300 in annual refunds that post automatically whenever you charge something that is categorized as airfare, Airbnb," Why not just say "anything that is categorized as travel, which includes airfare, etc..?
4. By the CSR- "You’ll get a Priority Pass lounge membership that allows you to bring unlimited guests" it should be two guests.
5. "You’ll get a free Global Entry/Pre-Check membership." You don't really get a free GE membership, the card will rebate the cost of GE/PReCheck once every 4 years if you charge it to the card.
6. "Note: The Sapphire Preferred and Sapphire Reserve’s spending categories are similar, so you’ll only need one of these cards as part of an optimized spending strategy. Personally I prefer the Sapphire Reserve as that card allows you to redeem all of your Chase points (including the points of an authorized user) to be used at a minimum value of 1.5 cents" Add a comma after personally and you don't need the words "to be used," you can just say "redeem all of your Chase points at a minimum value...
7. "Alternatively many people might find a more useful Chase Quinfecta to add a card like the Chase United Explorer card into the mix, this card also carries a $95 annual fee." This sentence is just awkward, maybe say "people might find it more useful to have their Chase Quinfecta include a card like the Chase UE card. This card also carries..." Or something like that.
8. "and they can add each other as authorized users on each other’s cards!" I would repeat "each other" twice, just say "they can each add the other as an AU on their cards."
9. "Additional user consumer cards do count, but you can get them not to count by calling reconsideration if you are rejected for a card." Don't say "you can get them not to count" that just sounds weird, I would say "Consumer AU's (from any card) do cound since they appear on your CR, but if you call recon, you can ask them to overlook them since they are only AU's and you are not responsible for paying the balance."
10. "All Chase cards that earn Ultimate Rewards are subject to 5/24 restrictions. That means it will be hard to get approved" For all intents and purposes, it's impossible to get approved, it's a little misleading to say that it is just hard.
11."Another benefit of the card not reporting on your personal credit report" I would add "benefit of business cards not reporting" I think the way you go about explaining this is a bit awkward. I would rewrite is as follows. "Another benefit... not reporting on your personal credit report, is that your credit score won't be hurt when you spend money on your cards. Then explain how credit utilizatin hurts your credit score.
12. "On an business cards from banks like AMEX and Chase" Drop the "an". "it’s just not reported," I would say "Your credit utilization is't reported,"
13. "The Sapphire Preferred or Ink Preferred card allow you and anyone in your household to transfer Chase points into miles. They also allows you to use points at a value of 1.25 cents each towards travel." Should be just "allow"
14. You really have a Freedom and Ink unlimited? Why?
15. You keep mentioning using household members cards for redemptions or transferring but you never really mention how it works. Since this is supposed to be an all about post, I would mention at least breifly that you have to actually transfer the UR to the specific card or yours or your AU that you want to use for redepmtion or transfer, you don't get the options automatically by having it in your household. Maybe I'm just being nitpiccky here but that's how I see it.