Generally, rental activities are passive activities even if you materially participated in them. However, if you qualified as a real estate professional, rental real estate activities in which you materially participated aren’t passive activities. For this purpose, each interest you have in a rental real estate activity is a separate activity, unless you choose to treat all interests in rental real estate activities as one activity. See the Instructions for Schedule E (Form 1040), Supplemental Income and Loss, for information about making this choice.
The real value of a building lies in the tenant. If you’re the tenant and you’re a good tenant, you might as well be the owner, otherwise, you’re giving that benefit away to someone else. A few years back we bought most of our buildings from other owners after renting from them for many years. Our approach to the building owners was, “We want to own our own offices, we are willing to pay you a fair price for the building, but if you won’t sell, we’ll buy somewhere else and move. 4/5 sold to us, the one that wouldn’t sell, we decided to buy a new office building and moved. Owning your own office is typically a very safe and very good investment if bought at a fair market value and assuming you are planning on staying put at least 5+ years. If you are trying to buy the office from your current landlord, I think a fair price is somewhere between the value of a vacant office building and the value of a stable physician occupied office with a long-term lease.
If you can save a lot early on in life, you can build up sources of unearned income, and this income will be exempt from payroll taxes. This is good news for investors and for retirees. Any pre-tax salary deferral contribution made to a retirement account, pension plan, or other pre-tax contribution will lower the amount of federal and state income tax liabilities, however, they do not lower your payroll/FICA tax - the FICA tax has already been taken out of gross wages. 
If your modified adjusted gross income (MAGI) is $100,000 or less ($50,000 or less if married filing separately), you can deduct your loss up to the amount specified above. If your MAGI is more than $100,000 (more than $50,000 if married filing separately), your special allowance is limited to 50% of the difference between $150,000 ($75,000 if married filing separately) and your MAGI.
The current laws don’t really distinguish between active and passive income. Since passive income is already taxed at a lower rate, companies can use dividends as a way to gain a tax advantage by paying dividends out of active (and lower-taxed) income rather than passive income. Business owners will now have to prove they’re paying dividends out of investment income, which will make it more difficult to game the system by getting a double deduction on lower-taxed dividends. Some business owners use dividends as a method of retirement savings. If your small business clients get their household income from dividends, talk to them about alternative strategies, such as setting up payroll and switching to a salary. While salaries are taxed at a higher rate, they’re also helpful for retirement savings as they involuntarily trigger Canada Pension Plan contributions.
Active participation isn’t the same as material participation (defined later). Active participation is a less stringent standard than material participation. For example, you may be treated as actively participating if you make management decisions in a significant and bona fide sense. Management decisions that count as active participation include approving new tenants, deciding on rental terms, approving expenditures, and similar decisions.

Net royalty income from intangible property held by a pass-through entity in which you own an interest may be treated as nonpassive royalty income. This applies if you acquired your interest in the pass-through entity after the partnership, S corporation, estate, or trust created the intangible property or performed substantial services or incurred substantial costs for developing or marketing the intangible property.
If you make the choice, it is binding for the tax year you make it and for any later year that you are a real estate professional. This is true even if you aren’t a real estate professional in any intervening year. (For that year, the exception for real estate professionals won’t apply in determining whether your activity is subject to the passive activity rules.)

In January 2018, I missed my chance of raising the rent on my new incoming tenants because it didn't come to mind until very late in the interview process. I didn't write about my previous tenant's sudden decision to move out in December 2017 after 1.5 years, because they provided a relatively seamless transition by introducing their longtime friends to replace them. I didn't miss a month of rent and didn't have to do any marketing, so I felt I'd just keep the rent the same.
It is helpful to have an understanding of the bigger tax items – basis and depreciation.  Basis is the cost or purchase price of the property minus the value of the land (note: you cannot depreciate land).  The depreciation deduction you can take on residential real estate per year is the basis (cost less land) divided by 27.5.  Depreciation is a great tax deduction you can take every year but will affect your gain or loss when you sell the property.
YouTube is one of the most rapidly growing trends in 2018 and getting subscribers on YouTube is all the rage. You can create videos on any theme like opinions, comedy, love, tutorials, music etc. and put them on YouTube. Overlaying your video with Google AdSense will make you earn every time the ad is clicked. If you create YouTube videos for an education matter, you can repurpose these videos into an online course.
And real estate does more than just track inflation – it throws off income (which is important to some people and useful to most). And while your underlying asset is appreciating, the income also grows as rents increase over time. And if you make smart and well-timed purchases, both rents and asset values can increase at well above the rate of inflation.
I just started out with Affiliate Marketing (idea # 8) and it is not as easy as people make out to be. For me, the hardest part so far, is learning Search Engine Optimization (SEO) and driving traffic to my website. I’m only 3 months into it, but I am confident that the site will begin to generate some incom., I have to give it 6-9 months, so we’ll see.