@Daniel Z Fang
I started investing in real estate nearly 50 years ago. One dollar was a lot more back then! I remember my first real estate broker telling me his goal was to become $1 million in debt. I was very young and thought that was a little weird. Understanding that became very easy as I began to purchase real estate.
I think you look at leverage differently based on your age, reserves and goals. Mine have changed tremendously over the decades.
The broker who wanted to become $1 million in debt had a very simple strategy. If he was able to get financing on that much debt and make the monthly payments to service the debt, and inflation was 6 to 8% annually, he would be making $60,000-$80,000 on paper each year. Those numbers represented a lot of money 50 years ago and I decided that was a great plan.
The numbers grew exponentially and allowed me to retire at a very young age. I have changed my methods of purchasing and owning real estate on a continual basis. It is now on autopilot unless I decide to take some chips off the table every few years.
Pick a plan, make it work and time will most likely give you the results you are looking for.
Good luck.