I have a strong network here and know the key players/stakeholders in the community and am trying to learn how I can get involved to make an impact to change the community and restore the existing (beautiful) infrastructure. 

It involves analyzing the real estate cycle and identifying the right moment to buy and sell properties.

This year they’re real estate syndicators; three years hence they’re running and selling oil drilling participations, after that they’re involved in fin tech.  

It is 'lost' when investing within a retirement account.2) If the extra rate of return is about 1%-2% it may make sense given all the extra worth involved such as setting up and paying for the SDIRA account and then potentially having to file certain tax forms if your income is subject to Unrelated Business Taxable Income.

does anyone know if having real estate investing in our LLC Name.... would be considered more risky to DUNS ...and applying for business credit?                                                                                      

Had horrible luck making good money without too much time and labor involved. 

If you want to scale, it likely won't involve you running your own renovations as a GC.

I also wouldn't be involved in day-to-day operations onsite.

Does their contract have some sort of contingency that allows them to apply for a billboard and back out if its rejected?

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.