Ensure that your plan is believable and realistic with enough evidence to substantiate your cash - flow projections: if it's exaggerated — showing a higher than normal profit — you'll instantly lose credibility.
While it sounds simple enough to invest based on cashflow, you need to ensure you obtain rental income properties capable of consistently generating cashflow.
Budgeting creates cashflow visibility and ensures that you have enough funds available to cover your most important bills and help you reach your goals by spending on the things that are most important to you.