If you are too risk-averse to engage in stock trading, there’s a much safer option to earn passive income, albeit with much lower margins of return: certificates of deposit or fixed deposits issued by banks. These financial vehicles are similar to mini investments. CDs work very similar to savings accounts with one notable difference. Once you place a deposit, it cannot be withdrawn until the certificate matures. You can obtain these certificates for lump sums of cash that you can allow to mature within time periods like 2 years or 5 years. The advantage of CDs is that they offer higher interest rates than regular savings accounts. You can rest assured that the money will be safe in the bank. A CD earns interest quarterly or annually and all you have to do is just sit back and wait for it to mature.
In 2006, Dr. Hardy purchased a 12.5% interest membership in MBJ for $163,974. During the year following this purchase, the Hardy’s decided to build an office for Northwest Plastic Surgery next to MBJ. Dr. Hardy had no day-to-day responsibilities at MBJ, never managed it, and did not have any input about management decisions. He primarily performed surgeries on MBJ's patients on Mondays, and he did not pay rent to perform surgeries at MBJ. He received a distribution from MBJ regardless of whether he performed any surgeries at MBJ, and this distribution was not dependent on how many surgeries he performed. Physicians cannot refer their patients to the surgery center when they hold a financial interest. However, the patients often choose the surgery center because it was cheaper.
As interest rates have been going down over the past 30 years, bond prices have continued to go up. With the 10-year yield (risk free rate) at roughly 2.55%, and the Fed Funds rate at 1.5% (two more 0.25% hikes are expected in 2018), it’s hard to see interest rates declining much further. That said, long term interest rates can stay low for a long time. Just look at Japanese interest rates, which are negative (inflation is higher than nominal interest rate).
Despite some ups and downs in recent years, real estate continues to be a preferred choice for investors who want to generate long-term returns. Investing in a rental property, for example, is one way to produce a regular source of income. At the outset, an investor may be required to put up a 20% down payment to buy the property, but that may not be a barrier for someone who's already saving regularly. Once reliable tenants are installed, there's very little left to do except wait for the rent checks to begin rolling in.
Sharon, you missed my point completely. If you feel you need $8000/month to live the life you want, and you get that $8000/month through passive income, you may feel financially free for a few months. However, next year, you’re not going to be wanting $8000/month + 3% inflation; you’re going to be wanting $16,000/month. This is greed 101. It’s normal. It’s natural.
In order to generate $10,000 in Net Operating Profit After Tax (NOPAT) through a rental property, you must own a $50,000 property with an unheard of 20% net rental yield, a $100,000 property with a rare 10% net rental yield, or a more realistic $200,000 property with a 5% net rental yield. When I say net rental yield, I’m talking about rental income minus all expenses, including a mortgage, operating expenses, insurance, and property taxes.
Portfolio income is income generated from selling an asset, and if you sell that asset for a higher price than what you paid for it originally, you will have a gain. Depending on the holding period of the asset, and other factors, that gain might be taxed at ordinary income tax rates or capital gains tax rates. Interest and dividends are other examples of portfolio income.

Crowdfunding is a newer way to invest, having emerged onto the scene just within the last few years. Most people have heard of sites like Kickstarter and GoFundMe, and a very similar concept exists for real estate. Developers are always looking to raise capital to fund their projects. Through the various online platforms, investors have access to these projects and can choose to invest in both residential and commercial properties. See the List of My Favorite Crowdfunding Sites.

Interest never sleeps nor sickens nor dies; it never goes to the hospital; it works on Sundays and holidays; it never takes a vacation; it never visits nor travels; it takes no pleasure; it is never laid off work nor discharged from employment; it never works on reduced hours; it never has short crops nor droughts; it never pays taxes; it buys no food; it wears no clothes; it is unhoused and without home and so has no repairs, no replacements, no shingling, plumbing, painting, or whitewashing; it has neither wife, children, father, mother, nor kinfolk to watch over and care for; it has no expense of living; it has neither weddings nor births nor deaths; it has no love, no sympathy; it is as hard and soulless as a granite cliff. Once in debt, interest is your companion every minute of the day and night; you cannot shun it or slip away from it; you cannot dismiss it; it yields neither to entreaties, demands, or orders; and whenever you get in its way or cross its course or fail to meet its demands, it crushes you.
If you don’t care about lifestyle design, you can just stay at your current job, right? With financial freedom, you can do whatever you want. You can actually start forming lifestyle design before you are financially free too, just like I have. Even though I spend the majority of my time working on my company, I have positioned myself to be completely on my own schedule, I work whenever I want to for as much or as little time as I want, I sleep in most days, I live at the beach, I can stop working in the middle of the day to go have lunch with a friend, go to the gym, walk the dogs or, shoot, stop working completely for the day and do whatever I want instead! Hiking, snowboarding, surfing, margaritas, whatever.

Herbert and Wilma are married and file a joint return. Healthy Food, an S corporation, is a grocery store business. Herbert is Healthy Food's only shareholder. Plum Tower, an S corporation, owns and rents out the building. Wilma is Plum Tower's only shareholder. Plum Tower rents part of its building to Healthy Food. Plum Tower's grocery store rental business and Healthy Food's grocery business aren’t insubstantial in relation to each other.

The IRS requires REITs to pay out at least 90% of its income to shareholders.  Thus, REITs tend to be higher yield since a large fraction of the earnings come out as dividends, which may be beneficial for certain income oriented investors.  The flipside is the tax cost for investing in REITs since income must be distributed and as a holder the taxes flow through to you.
1. The batting cage idea is very risky. I’ve seen many of them close over the years and it is not anything close to passive income if you want to keep the business going. You have to continually promote it and target youth leagues, coaches, schools etc to catch all of the new players who grow up and want to play. I’ve played at probably 8 batting cages over the years and 7 of them closed.