One flat tire, one sick kid, one broken leg.

It's not in my current lease, but I will have several units open over the next month, so it's still an addition to my lease that I might want to add.

And also my father’s back is damaged because when kid he almost killed himself hiking.

In addition the majority of the not so experienced are either out of state (OOS) or planning on going OOS.So I am not recommending against going to the San Diego BP social as much as 1) setting an expectation 2) suggesting you may want to go to a meetup maybe associated with an RE investor club.BTW there used to be a near monthly BP Meetup at various RE investment properties. 

.- Have kids: Hire them, they pay no tax up to 12K each and you get to deduct 12K.

Regarding Condo Exterior repairs, it is also common for a major repair to require additional funds over the HOA dues, so a Special Assessment is often levied.   

You should ask the bank first if they can provide additional funding, but be prepared to explain what happened with documentation to support it. 

And lastly, you gotta live like a college kid.

If you're looking for additional safety, you could even split some of it to be invested into conservatively underwritten debt, so that if things go badly you can foreclose and recover some or all of your principal.

In the end if you get a bad enough tenant maybe you end up flipping a house anyways...just kidding.