1-4%? At first you are just paying almost 66% or more interest and mostly not the mortgage principal, here is an amortization calendar https://www.bankrate.com/calculators/mortgages/amortization-...

If you want leverage, you can get vastly more leverage for risky stock market trades (I am not advocating for doing that, I just think it's odd when real estate proponents talk about 'leverage' as if it's unique to buying a building)