I am selling my current business and will have about 300k that I would like to avoid paying taxes as much as possible on, so I am looking for something to invest in.  

If it isn't, sell and hopefully pocket some profits to invest in something else.If it is for you, you could repeat the process and buy another owner-occupant property and rent our your previous.

Its really simple, uneducated and unsophisticated people doing something that they do not know...

I don't know how it would work using "$100" in rewards to buy something for the rental unit and if I could write that off. 

I'd have a very clear plan before you do something like that.There's a guy I was told who owns a company and all he does is teach people how to tap into the business credit their company can access. 

I wouldn’t make my flip my primary, I’d just live in my flip house until I found a new primary to buy or rent something  

I need it for something back in 2010.

I’m very interested in partnering up with other newbies in real estate for something similar to this. 

This diretly impacts the life of your tanks.As @Michael Smythe mentioned - always get an itemized invoice espeecially for something over $500 or so. 

It is estimate that nearly 9,700 people in NC are suffering from Homelessness *Side Note: If you want something interesting to check out related to Homelessness across the USA: 2023 AHAR Report (Page 18 of the PDF gives you a country wide, by state graphic for a super quick review) Fayetteville has a cost of living ranked as 23rd/50th most expensive in NC, pretty middle of the pack.