Fortunately, no one was nearby or injured. 

I care about my wife and best friend and should something happen to me, I want them have all the information they need to step in and run my real estate investing (mostly rental properties) and real estate brokerage businesses.I am going to create a list of important instructions, resources about where stuff is and how I typically operate my business to make the transition easier for them should I get sick, injured or even die.I've got a decent list of things I'm going to provide to them (via my attorney who will hold it in trust for me) and of course I'll let them know they should contact my attorney for this should something happen.My list is pretty long already, but some examples for me are:1.

Martial arts are great for the young and fit, but what about the old, injured, weak, disabled, etc?

I was with an organization once where one of our drivers ran a light and killed another driver (a young girl) and seriously injured her father, and even that case ended up settled at $1 million.

Also check that they have some sort of workers compensation insurance for their people should they be injured while at work and wish to blame you for it. 

i would never supply a lawn mower its a liability if they are injured while using and they will never take care of it.  

However, if you have their approved and it's signed in the lease that you're able to do those things, then by all means employ your strategies, knowing that now you mostly likely take on all the risk if some Airbnb renter doesn't pay or damages the property or gets injured on the property, etc...Just make sure everyone is all clear and in agreement, in writing, before you get into any creative situations.

No one wanted to lend me money because I didnt have a W2 job at the time because I got injured playing professional sports and I was receiving workers comps but I knew I wanted to build in this business.

Should some one "unqualified" (go ahead and argue that if you want, the courts have already ruled) injure themselves in the process, the company could be held both criminally and civilly liable.The "cost of labor" is the cost of living in that locale - it is dictated by no other factors.

If she doesn't remove the dog then file for "cause" failure to control her animal, you have the reports.Honestly your rental business is in my opinion in a kind of jeopardy, if this dog attacks another person on your property and you have not taken steps to remove it or notified tenant to have it removed I would guess who is the injured going to also sue.. guess who...you... at a minimum the tenants should have a insurance policy on their dog and you should have record of that along with vaccinations.Security deposit is refunded within the guidelines your state requires, once tenant is gone.