Is it possible to refinance the HELOC now into a conventional on the STR to remove the HELOC from my primary home and free that up for other investments.  

I did a 30 year conventional loan. 

I don’t see many 3bd/2ba in area and I was told by my agent that it’s a good thing, meaning there is not much inventory for those and these could rent pretty quick with good rental Comps.

FHA vs Conventional is definitely something to look at.

Owner occupied 5% down conventional loan.

As a mortgage officer, I can assist you in understanding loan products that suit your investment goals, such as conventional loans, FHA loans, or portfolio loans.Property Management for Self-Owned Properties: Leverage your management skills to maintain high occupancy rates and maximize ROI on your investments.I am a loan officer licensed in NC, feel free to reach out if you have any questions or need assistance with financing options.

It has started to slow down slightly with more inventory coming available in my area and now that I’m asking higher prices.

Has anyone worked with a lender who has actually closed an FHA, VA or Conventional Energy Efficient Mortgage?

SLC only has one major hotel under construction and not a large inventory of nightly rentals as it stands. 

It's not a perfect measure, but it's very close and year to year consistency is highly reliable due to limited new rental inventory