The main strategy at first will be to sell real estate option contracts and consulting services. 

This is a tax question for the situation where the main house is 100% occupied by the owner and the carriage house/ADU is 100% dedicated for Airbnb renting (never used personally).

My main focus right now is rental property; something to generate some steady income.

The main reason being its important to keep your word. 

Because when you try and sell 123 Main street a 3 bed 2 bath house on Craigslist without a RE license you are violating CA business and professionals code.

Hi,I purchased a condo in FL in November, we had an issue with the shower in the Main bathroom this week and had it resolved through a Home warranty (that we negotiated into our deal).

I've been searching for a tool to help me reach financial independence and I really think real estate can be that main tool if done right.

You can't set it up just for purposes of qualifying for a Solo 401(k).Also, if you contribute to your day job's 401(k), you can still contribute to your Solo 401(k), but the total contribution limit ($18,500 for 2018) is the max for both plans combined, not separately, meaning that it's not $18,500 for your day job's 401(k) and $18,500 for your Solo 401(k) but rather a grand total of $18,500 for both.

X LLC wholly owns x LLC, y LLC, & z LLC, which are disregarded entities for tax purposes. 

During the refi of property number 2, anticipating refi of property 7, I paid off all my small credit card balances and brought my loan to available credit to under 20 percent on my main card.