We got a small drop last month but nothing worth bragging about.I was thinking of doing a refi with dropping rates but doesnt seem like thats in cards currently...Thank you The bond market happened.

Like much of real estate, it looks a whole lot better on a spreadsheet than it does in real life.It works at scale or with a lot of experience, but you are kind of building a house of cards needing everything to go right in the beginning. 

My wife and I use something we call the "One card" that we learned from another Memphis area investor.

Your credit limit on an unused card will not generally affect your scores.

They are business CC but I don't use them anymore and would rather use cash/debit cards.

I seem to remember that I didn't even have a business card until then either.You are VERY late to the game to be making these decisions. 

I’ve bought some houses with 0% interest for a year credit card loans.

Hold on to the cards forever (closing accounts or opening new cards can impact your score).

When you do it, you show your cards, but new people don't knew because they are thirsting for help and will take it from literally anybody.

But you play that card if you have to.