Take all your potential rents of a prospective property times 12 months. Then multiply that number by the condition of the property. For example, if the property is in excellent condition use 80-85%. If its in horrible condition, use 30%.
So, if this is a four-plex and the rents are $500 each, your potential rents are $2000 per month. Multiply that by 12 months and you have $24,000.
Say the property is in average condition, rate it as 70%.
Multiply $24,000 by 70% and you would get 16,800. Add a zero and this would tell you what you need to pay to have a 10% cap; $168,800. If you pay $200,000 you would have an 8% cap.However; caps can work if you have no extra expenses. There are other things to take into consideration such as:
1. if the landlord pays utilities besides the water. Especially if the landlord pays the gas bill and the property is in a colder climate.
2. if the vacancy rate is below 90% on the average
3. are there major expenses needed such as a new roof?
4. what are your costs for management and maintenance?
Look at the costs for all these figures in past years and see if the numbers make sense with the cap or do you need to figure a lower number instead of 70%.
Everyone will tell you that you can't find properties with a good cap but that's not true. I know people that won't buy a property less then an 11% cap. You just keep looking until you find the right property, or you offer a lower price and the seller accepts that price. You have to make sure the numbers work, or you will lose big time! But if you buy and the numbers work, you should be successful.
rochelle