That's my personal style; not threatening or hostile, but more of a " hey, lets see if we can get this back on track, otherwise you'll probably have to move back in with your Mom...".If your money is so tight as the landlord that you are maximally stressed over rent coming a few days late, you need to work that out on your end and not create a problem where there really isn't one. 

.  ^^^^ As the old saying goes - 'we teach people how to treat us' 

Adaptability: Great leaders remain flexible and adapt their leadership style to meet the emotional and practical needs of their team members.8.

I'm totally newbie on these things and that video can teach me a lot...

One-year leases are very common in smaller spaces, as you're most often working with tenants in the trade industry that need a garage styled space for tools and equipment, some with a small 1-person styled office adjacent the shop.

It's one of the things I do/teach as part of a system.  

My father in-law who is a builder (licensed GC) has agreed to be the project manager and teach me the ropes. 

(However, the software is geared towards smaller companies)(There are specialized softwares that larger companies use).Quickbooks can handle the accounting for a small business who does flips.In my opinion, you likely need to take a class on QuickBooks to properly and efficiently use the software.There are likely some schools nearby that will teach you quickbooks.The alternative is to out-source it to someone who is focused on the real estate accounting space.Best of luck.

Is there a particular architectural style of house you prefer? 

I have a friend who works for a well-renowned construction company in our town who has offered to be our general contractor at a discount (only charging us 8% vs. the standard 15%) and "teach me the ropes"/make the right introductions so that I can repeat this on my own in the future.