They have insulation that stops noise and is fire proof.Could get expensive unless you can do some of the  work .

So, if you are educated on these points and can clearly state your case on why the market is good for your investment, then you kinda have to ignore the noise a little.  

But it's going to be a grind. 

Outbound marketing in general is a grind.

I had a toilet that was running and did not make any noise, no was this visible. 3.

If the tenant is problematic (late rent, noise complaints, not keeping up on the yard) then I'll inspect more often. 

They are willing to drive to get away from the traffic and noise of town.

It can be an absolute grind but that's what it takes.Good luck.

that makes sense but the percentages are only referring to appreciation of the value of the properties over time.But maintaining my monthly cash flow (passive income is important for me because that would be our family's income stream (I'm thinking of leaving the corporate grind to make a living with real estate passive income.So my decision matrix is based on appreciation of the value of the properties as well as maintaining a positive cash for for our family income.If the only dimension was to think of the net worth after twenty years then I think that leveraging would work best....

Seriously this stuff grinds my gears.