If someone is trying to quit a 40k job a year and is accumulating local units to do themselves that is a different situation.To scale and have multiple revenue streams the investment has to have structure and little involvement from you the owner to perform.

I stopped trying to personally figure this out after just bumping prices up and up over COVID and went with a revenue manager. 

Typically you will never have more than half vacant at a time and that means you are never at zero revenue.

Take 10% off your revenue for that.

If you had a competitive advantage you need to understand note investing and how to do due diligence on it to see if it’s a legit note and feel for pricing expectationsNot saying it cannot be done but there are every few brokers in the space.If you are trying to do this as a way to generate revenue, unfortunately I think you will be disappointed

I used a faucet as an example because that is an item that normally breaks down first and often observe customers walking down the fixture aisle at HD or Lowes looking for the least expensive option, whereas purchasing inexpensive tile or other cosmetic items won't necessarily cause maintenance issues although I would argue will cost you revenue (more on this below). 

A brief summary of revenue, costs, and expenses incurred within a specific period.

@Jessica CotéHouse hacking involves transforming a carriage house into a long-term rental for landlord experience and extra revenue.

I just use occupied nights/365 and account for vacancy to include any reason it is not pulling in revenue.

From one of our sales, We were also advised that if this property sells to a third party at a sheriff sale, and we cannot provide the department of revenue inheritance tax lien certification, the Allegheny county sheriff will not issue the deed until they receive a copy of the lien certification.