If the rent payment covers your mortgage and you have a good tenant, why would you get rid of them to take on the expense of unit turnover, because you will have to do one, and the 5% vacancy loss just to increase your rent $150 per month?

You have to adjust your expectations to match current reality, which includes higher mortgage rates, higher prices, more expensive taxes and insurance, more competition, etc.

Where trust is low, though, things are slower or more expensive or both.- Understand that you can have never more than 2/3 of the following:  Fast, Good, and Cheap.  

@Vidit Maini Starting your business as an LLC taxed as a C corporation offers flexibility but involves double taxation unless you elect S corp status, allowing profits to pass through to your personal return.For tax savings, deduct startup costs, track business mileage or vehicle expenses, and consider a home office deduction.

This can be costly for your property manager, and you may have to pay for their insurance policy, which can add unnecessary expenses to your budget.It strengthens your relationship with your property manager.Adding your property manager as an additional insured is a gesture of good faith that shows you are committed to protecting their interests.

I went high on the expenses, which came to roughly over $20K. assuming 1 unit to be vacant per year (83.3% occupancy).

The calculator estimates that operating expenses are equal to 50% of the monthly income.  50% is a rough guide. 

It's not your fault that the tenant has to vacate, so the tenant should have insurance to protect them against any additional expenses.

We require a minimum credit score of 620 (averaged between occupants) to qualify.

Cash-flow is for "keeping the lights on" as in covering operational expenses to defend against any need for additional capital investment.