For this report I used an FHA loan for example, so 3.5% of the purchase price.

A common example is Cleveland.

In a 1031 exchange, the replacement property must exceed the total sales price of the property sold ($700K in your example), not just your equity portion.

There are clear winners in types of photos that should be included in your listing, along with examples of listings I believe achieve this.

I have looked for examples of landlords that were protected by their LLC and always come up empty handed.

Try Emerald Dolphin or Longhorn for example. 

If i sell my SFR rental for $450k and equity is, for example, $200k...Can i invest 100k into a new SFR worth $275k and invest the remaining 100k into a sponsored DST or TIC (which deals are usually multiple hundreds of thousands of dollars?

The IRS views it as taxable income because it’s not being used for the purpose of deferring taxes under the 1031 rules.For example, if you sell a property and only use part of the proceeds for the next investment, the leftover amount (after paying transaction costs, etc.) is taxed.

Restaurant switched over to Dental office, example.6. 

For example, a property in San Diego may lose $500 per month ($6,000 per year) but gain $60,000 per year in value, making it worthwhile to "lose" money each month in exchange for long-term gains.I recommend you start with BiggerPockets Ultimate Beginners Guide (free).