Now, this tenant is saying that they don't remember any agreement and thought they paid month to month and could leave whenever.

Remember that perspective is everything. 

I don't remember the precise words, but essentially he claimed that there was some sort of standard rental agreement applicable to the area and he could not (perhaps in reality would not) add anything to it at all, which struck me as oddly questionable.

You have to be up front about how the property is being used.Also, remember that umbrella insurance will not do anything for you if the underlying property or vehicle is not insured correctly.  

Best of luck on your journey, and remember, delayed gratification is your best friend in this business!

Remember that it takes more cash than you think to buy a place, too.

Do you also remember appraisal value? 

Regarding the payout inefficiencies, I remember the nightmare that some folks were experiencing with state unemployment benefits during Covid.

I always need to remind myself about that, because I also (like many millenials) have a problem remembering what my bigger picture goals are, so I tend to want to sprint so that I don't forget and hence lose myself in the flywheel that is day-to-day living.

THEY ARE STEALING FROM YOU (remember your remark about him not even getting a fast food/entry level job?