The other thing that is helpful is a list of cap ex improvements in the last 5 years, age of roof, Hvac, plumbing, electric, last interior updates, who's managing it, any city hazards/issues 

Whatever you have left over from your annual rental income after you have paid all the annual expenses for property taxes, hazard insurance, cleaning, maintenance and upkeep, repairs, property management, legal fees, advertising, mailing, postage, HOA fees, etc. is your annual cash flow. 

I verified the garage door safety sensors work just fine and the last tenant of 2 years never had any issues.

Some background on my personal finances I contribute the maximum amount that my employer matches on my 401kI am making contributions to a taxable investment account with a 40/60 allocation as a safety net.

I am not worried about safety - the box is much harder to open than it would be to break the lock on the door.

While you intend on being here for the summer, that just a) means there is more for you to enjoy when you are here, and b) it is a good safety net if you don't end up being able to spend as much time as you hoped for.  

We do have safety bars in the bathroom but no other equipment.

“Red tagged” as a hazard.

Thank you,  the lease states that The tenant agrees that the Landlords, their agents, servants, and contractors, shall have the right to enter into and upon the premises, or any part thereof, at all reasonable hours for the purpose of examining the same or making emergency repairs and alterations as may be necessary for the safety and preservation thereof.

I don’t understand why people would risk their freedom and safety, doing things like this with a kid.