I've got to say that of all of the pricing and terms you'll want to offer your future tenant-buyer, THE most important price is... your rental price. Bar none.
Of course, you want to sell at the highest purchase price, but since you're selling, "rent to own" (Lease with the Option to buy), if you overprice your rental amount, your house will sit and it matters not how much you want for your over all purchase price.
Get this part wrong and you'll only succeed in showing your home to your nosy neighbors.
Often when my affiliate team and I inform a seller that we can get them their full asking price, and help them fully avoid paying any commissions or fees in the process, some sellers will get the nutty idea that they can simply ask whatever rental price they want - and they'll get it. Wrong.
With the Internet at the fingertips of 5 year olds these days, it takes but a few seconds for a home seeker to plug in the area the want to live in and the price range they want to pay.
Take Craigslist.org for Example...
All your tenant-buyer has to do is plug in their criteria, and within seconds they can quickly shop you (and your competition) and decide if they feel your priced right - or over priced.
Granted, you are selling, rent to own, and you're giving other great terms that may very well justify a higher price, but... that doesn't mean that the tenant-buyer population, at large, has any real clue of why they should pay more for your home over your competitors. And while you may be perfectly justified in charging $100-$200 more per month for your rental price, being justified in charging more and actually succeeding in renting/ selling your home to a tenant-buyer are two different things.
I recommend that you make your money on a higher Option price (the purchase price you'll sell your home for) on the back end, instead of raising the rent on the front end (at least in the beginning). There are other ways you can be fully compensated for the great terms you'll be extending your future tenant-buyer that won't price you out of the market.
To price your rental amount correctly, there are several ways you can start, and while the following list is by no means exhaustive, it's fair to say that it's a quick, easy, and free way that you can get an idea of how much you should charge.
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