State e-file available within the program. An additional fee applies for online. State e-file not available in NH. Additional state programs are extra. Most state programs are available in January. Release dates vary by state. Online AL, DC and TN do not support nonresident forms for state e-file. Software DE, HI, LA, ND and VT do not support part-year or nonresident forms.
1) If your property is not under rent control, you have the ability to raise rent to market prices with proper warning. In SF, I have to give tenants a one month warning for up to a 10% increase and a two month warning for up to 60%. Rent control limits to an inflation index, usually around 2% a year, which is why initial pricing and tenant turnover is important for better profitability.
If an investor puts $500,000 into a candy store with the agreement that the owners would pay the investor a percentage of earnings, that would be considered passive income as long as the investor does not participate in the operation of the business in any meaningful way other than placing the investment. The IRS states, however, that if the investor did help manage the company with the owners, the investor's income could be seen as active since the investor provided "material participation." 
Reality One: We live in a competitive and fast changing world. Business has become highly specialized and niched because knowledge is growing exponentially, requiring specialized skills to employ it properly. Successfully competing in many widely varying fields is contradictory to the specialization and complexity required by our current business climate.
Please consult your tax professional for further information regarding eligibility, tax-deductibility of Traditional IRA contributions, tax-deferred/tax-exempt interest, limitations and tax consequences of distributions for college expenses and first-time home purchases, and additional IRS rules governing both Traditional and Roth IRAs. Severe penalties may be imposed for contributions and distributions not made in accordance with IRS rules.
The theoretical generalization to more than one period is a multi-period wealth and income constraint. For example, the same person can gain more productive skills or acquire more productive income-earning assets to earn a higher income. In the multi-period case, something might also happen to the economy beyond the control of the individual to reduce (or increase) the flow of income. Changing measured income and its relation to consumption over time might be modeled accordingly, such as in the permanent income hypothesis.

While it is important to find something that you love to do and turn it into a money making business, you do have to be cognizant of the return as you pointed out. There are many opportunities that I found and tried out that at the time seemed great. But when I took a step back, I realized that I was working a lot for very little income whereas other things I love doing brought in much more money.
One of the best ways to build wealth is to get a handle on your finances by signing up with Personal Capital. They are a free online platform which aggregates all your financial accounts on their Dashboard so you can see where you can optimize. Before Personal Capital, I had to log into eight different systems to track 28 different accounts (brokerage, multiple banks, 401K, etc) to track my finances. Now, I can just log into Personal Capital to see how my stock accounts are doing, how my net worth is progressing, and where my spending is going.
Maybe you’re obsessed with homemade jewelry and want to sell your wares on Etsy. Or, perhaps you’re well-versed on the Amazon reselling game and want to earn extra cash finding unicorns (rare and valuable products) and reselling them for profit. Maybe you’re obsessed with a specific topic and want to start a blog that can one day bring in advertorial and affiliate income.