To bring it back to mathematics, you have this dilemma whether the market is up or down.  

Obviously, single family homes are not commercial property, but if you can find a way to mathematically quantify your question, you will be happier in the long run. 

The billing should be logical with a mathematical formula. 

I have a bachelor's in Applied Mathematics and am employed as a junior software engineer.

I am a high school mathematics teacher in Dallas, TX, but take advantage of the lower cost of living in Irving, TX. 

And on and on and on.Assuming that you have absolutely identical tax years in 2024 and 2025 (which is never really the case), you usually win mathematically by spreading your sales (or any income, for that matter) over multiple years versus receiving all income in a single year. 

[Note: There appears to be a defect in the parser for the forum which prohibits one from using the mathematical symbols for "less than" or "greater than" in {HTML} formatted text such as bullet lists. 

Not to plug him but I read Dave Ramsey's book on personal finance and used the snow ball theory and it was amazing how fast the balance of student loans go down when you really focus on them, its not the most mathematically efficient way but very satisfying for human emotion for sure.

While there are differences when it comes to investing in Mexico, the mathematics are the same on both sides of the border!

Mathematically the IRR calculation requires a closure of the CF loop.