The formula has changed at least 4 times that I can think of in my 25 years of bidding and since Sage took over a few months ago the system has make the biggest changed and not for the best for the investor.  

My biggest deal is a 6plex and I'm now looking to scale into 8-12 unit buildings. 

They will also make you make the biggest mistake of your life.

thereby allowing these plumbing updates to pay for themselves).I've got the toilets and faucets all picked out (because I have personal experience with these and I know which ones are good) - but I'm not sure what to do about the shower heads...I know that shower heads are an item that can be the biggest money-saver (because these tend to consume more water than anything else).

Saving about 1/4th of that in taxes.) only downside is if you spend the money and then the sale doesn’t occur. 

Quote from @Bob Stevens:What has been your biggest challenge?

biggest pay days in buy and hold in RE happen in the path of progress hands down.  

The downside is cost and leverage. 

I definitely could've tried to maximize my monthly income by renting the property by room, but with HOA restrictions and my inability to comfortably find a property manager that manages rentals by the room were my biggest reasons to rent out the entire property under one lease. 

Mortgage Program will Exacerbate InflationU.S. federal government spending "is the biggest threat to disinflation and lower interest rates" (Piper Sandler).