Are there any on-line government sources of truth for any particular city's future infrastructure/expansion/city planning plans or any private company tracking these initiatives? 

Most of the courses are now online, so you get very little teacher input.If you are looking for actual builder knowledge, you should be looking for in-person classes.

When a foreign LLC wants to do business in Arkansas, it must register with the Arkansas Secretary of State and pay the $300 state filing fee ($270 online). 

I’ve spent months doing online learning, lots of property analysis, and meeting people.

It sounded like the way you were writing that you might be doing a lot of online research and sending out offers, but since you mentioned an agent, I wanted to check.Are you getting enough reps seeing houses to know what your offer prices should be?

Check out other online guides available here: https://www.biggerpockets.com/guides3.

Like not the FCC but online.

Check the in person events and meetups in your local area, our online community is full of knowledge and folks willing to share and still nothing replaces the opportunity to interact IRL, you never know who you will meet and where that can take you on your REI journey. 

I got the same rate that I would get on any direct booking since they could see the listed price online.

Connecting with local real estate investor groups, attending meetups and conferences, either in person or online, can give you advice + support as well!