Hey Ryan, good question! It all depends if your numbers are correct. A lot of people make the mistake of saying their property can get $1200 in rent a month when in reality it probably will get $800. So i suggest rentometer.com or zillow or ask neighbors who are renting, and what they are paying. Alot of people run numbers and make a plan in their head, and its all good until they find out that their numbers were wrong. Ok so rent, insurance, hoa fees, if its sfh, you dont pay for water or sewer, the tenant pays that. so you don't have to worry about that. Also when i run numbers, I always run "worst case senario" numbers. meaning that if all my research suggest 1000 in rent, ill just write in 800 to be safe. if insurance is 80 bucks a month, ill just put in 120 bucks just to be safe. This way, if your off on the numbers, you can still save yourself. Also and most importantly is the mortgage and the cash flow you will create. just add them all up and subtract from rent and thats your cashflow. You asked how do you get the numbers, well rent you have to reasearch of the sites i addressed earlier, and insurance is pretty basic, you can call insurance companies and get quotes. Hoa fees you can just ask who is listing the property if there are any. Alot of people underestimamte hoa fees.
hope this helps. any other questions. lemme know.