Fourth: even if the entire deduction is available, it results in much smaller automobile deductions in future years and extra taxable income when you sell the vehicle or trade it in.

Landlords can enter a tenant's property for a variety of reasons, including: Making repairs or replacements Responding to a tenant's request Removing unauthorized window coverings Preventing waste of utilities Changing filters, testing, or replacing smoke detector batteries Inspections Helping with an emergency inside the unit Posting a notice of eviction"Research your state laws because some of your comments indicate a lack of understanding of the landlord/tenant laws where you are operating (like threatening the tenants to keep the security deposit if they don't respond to you, I doubt that is actually a valid reason to keep their deposit, or evicting for late payments, or charging the tenants for your warranty repairs because you missed your 11 month inspection window which was your responsibility, and it looks like your lease says you can charge up to 18% interest for unpaid fees, is that actually legal?).

Sharing our home a bit has been a small trade-off for living nearly mortgage-free while building wealth.

Most service or trades people us included increase the rates for customers we don’t want.  

/city regulations, set up costs, doing things to stand out) and leave you with less cash in case of an emergency.

Any debt that can help in an emergency is a good idea.

@Lolo Druff Real Estate Investing is not like Trading Stocks or Crytocurrency.Real Estate Investing requires some deep thought and research from you as an Investor.Having 400k to deploy to multiple duplexes is a great start but you have some questions to ask and answer yourself.

But I've learned a ton from this experience and believe it or not, wouldn't trade it for anything.

Do I give up access to transportation, restaurants, cultural activities, doctors, emergency medical care, religious and business activities, vet care and maybe more, to live in the country on my ranch or on the beach in a beautiful country, or do I keep access to all those things and live in the city? 

I have traded maximizing cash flow for ease of management.