Because you succeed with the househack, you are well-positioned, and also highly motivated to go after another property...rinse and repeat, and in 5-6 years, you have 5-6 cashflowing, (hopefully) appreciating, relatively easy to manage LTR single family homes.  ...or, perhaps you go into STRs after you househack--in which case, you will be much better-positioned and much more well-prepared to succeed with the STR (because you'll have the invaluable experiences gained from your previous househack).In skiing, we don't take beginners down double black diamond trails--doing that would endanger them and other people in the area.

I am a local, street-level BRRRR investor that is hunting and always trying to sniff out a deal on the ground, and they are an endangered species at the moment. 

After 2 months in the unit... one of the tenants damaged a lot of my property in a drunken rage... endangering the mother of his children and front of his infant and toddler and getting arrested.

Right now we're stuck with a tenant that's not only bleeding us dry but also endangering the lives of anyone associated with the property. 

Carlos, You are absolutely correct, there's  no need for a permitKeep in mind though, if it involves endangering yourself and public safety as to plumbing, electrical, load bearing columns and wall structures, etc.

I actually did something for my job that sounds incredibly cool, I'm a field biologist, my specialty is endangered species surveys.

ESA or not, the animal can’t endanger or disturb others excessively.

So she wants to stay home from work to avoid endangering her mom with serious pathogens.