There are various ways to reimburse someone for helping you out, but you've gotta make sure you're not treading into territory where you're acting as licensed brokers or salespeople, whose actions are governed by state and federal laws - hence, the reason you can't act like one without being properly licensed.

Doing it yourself properly is a huge hassle and you could easily miss something.I've learned to use professionals and spend my time finding buyers/sellers/investors/properties.

Don't let the parent corp situation blow your mind, still go to the company in name if they are open, they will either direct you properly to the right department or simply take care of themselves.

Unless ALL of these things are done, they haven't properly vacated the premises.

I'm scared that if I don't properly document the living arrangement with this 'stranger' I might run into problems.

Just get a payment processor that can run card not present transactions and get their card number?

I would just prefer to keep my cards closer to home.

I've read about analysis paralysis and feel eager to get started with investing, but also want to put in the proper amount of time upfront to learning all of the basics and building a solid foundation of knowledge.

Most of the areas investors will find there way to the property and you can give them your card and be sure to get their info.

Before I go any further, I do want to specify that these "lines of credit" come in the form of business credit cards, not traditonal lines of credit like you would get from a bank.