Since you're selling 8 SFRs, this could break up into multiple distinct exchanges (most likely), but you have the option of combining multiple sales into single exchange purchases. 

The self serve option is hit or miss, I wouldn't use it in a city with strong squatters rights.

Do I have any other options?

We've also discussed the fact that these are all optional, cosmetic things that if don't fit in the budget, simply won't be done or will be done at a later date on my own when I get around to it.

I’m in the process of learning about crowdfunding as a real estate investment option - to invest my money - for returns.What is your favorite real estate investment crowdfunding platform?

Either option would cash flow around $300/m. 

I will definitely look into my options with those.

With interest rates at a steady increase, typically investors in Multi units are looking at 8-11% interest on conventional, commercial, and PML options.

I’m going to speak with some builders and see what my options are.  

You may not get exactly the house you want because your options will be more limited but this can be done.