Share your insights or perspective on the financial matter presented in the input.

Does this sound like a great idea regarding being a landlord and starting a real estate empire?
BEFORE you invest in a house, make sure you account for all the returns, risks and costs, and compare them to returns, risks and costs of other investments. If you invest 20% of a house's value in another investment, you would also expect a return. You also probably will not have the cost interest for the balance (80% of ???). I have heard people say "If I have a rental property, I'm just throwing away money - I'll have nothing at the end" - if you get an interest-only loan, the same will apply, if you pay off your mortgage, you're paying a lot more - you could save/invest the extra, and then you WILL have something at the end (+interest). If you want to compare renting and owning, count the interest against the rental incoming against lost revenue (for however much actual money you've invested so far) + interest.  I've done the sums here (renting vs. owning, which IS slightly different - e.g. my house will never be empty, I pay extra if I want a different house/location). Not counting for the up-front costs (real estate, mortgage establishment etc), and not accounting for house price fluctuations, I get about the same "return" on buying as investing at the bank. Houses do, of course, fluctuate, both up and down (risk!), usually up in the long term. On the other hand, many people do lose out big time - some friends of mine invested when the market was high (everyone was investing in houses), they paid off as much as they could, then the price dropped, and they panicked and sold for even less than they bought for. The same applies if, in your example, house prices drop too much, so you owe more than the house is worth - the bank may force you to sell (or offer your own house as collateral). Don't forget about the hidden costs - lawn mowing and snow shoveling were mentioned, insurance, maintenance, etc - and risks like fluctuating rental prices, bad tenants, tenants moving on (loss of incoming, cleaning expenses, tidying up the place etc)....