If you need plumbing replaced does your plumber charge you based on a % of rent?

@Jaekwan LeeA house hacking inspection checks for structural integrity, roof condition, plumbing, electrical issues, HVAC systems, windows, insulation, base and attic damage, unit conditions, and code compliance.

Mostly because we have to add roof dormers and also for the expense of running the plumbing.

If those were added in it would have been about $150/sf and that was for a site ready addition without plumbing. 

I even had two people claim to be licensed in certain areas that in fact they were not and could not even pull a permit... not to mention they were not even properly credentialed for major things like electrical and plumbing. 

As soon as you open up drywall, frame new walls, redo electrical or plumbing your timeline and budget explodes.A good flip follows the same sequence as new construction:1.)

Plus all the necessary stuff, like plumbing and electrical, roof and gutters, all the things that a 100 yr old house is likely to need, unless recently handled.  

HVAC, electrical, major plumbing, etc.I know for a fact there are a lot of people not following the ARS on that. $1,000 doesn't get you very far these days.

Learning the basics of electrical , plumbing , AC , painting etc will help you in this line of business which also save you a lot when you acquire your first home.This is how I got started , maintaining the rentals of my uncle  when I was your age. 

Quote from @Mitesh Patel: Hello,An emergency electrical issue affected the plumbing lines too, and I am quoted the below price for repairs.