A couple of months ago, I ran across one of Dave Meyer's videos, and that led me to the podcast, and that led me to the Real Estate Rookies podcast, and a host of others who I won't mention, but were nevertheless valuable.

Hello BP,Are there business credit cards that don't require a personal guarantee?

The next step I see is to buy a (ideally) quadruplex to househack.Please excuse my rookie questions.

I also got a business credit card for buying things related to the rentals. 

It can be as simple as a binder, business cards, poster etc in the unit. 

We keep our list in SharePoint and every quarter we grade them like my kids and have a report card.

Build a strong credit score by responsible usage of credit cards, reading books, and engaging in forums.

We found our forever home in the neighborhood we wanted by driving the entire neighborhood, adding the properties using DealMachine, and then sent them all handwritten greeting card letters stating that we're a new family looking to move into the neighborhood and if they had any interest in selling to please call us. 

On the ledger it indicates that the prospect paid the rent with a credit card but I'm not finding any credit card payments close to the monthly rent.

Just shoot me a message with your email and I will send over a picture of their business card.