The issue I find in my area is the rents are very low which make it difficult to work the numbers.

And even if I can open a Solo 401K with that low amount, I heard that if I stop making money in my LLC or close my LLC you have to close your Solo 401K and transfer everything into a regular 401K.

Home description: ranch style home with basement in eastern NC, no crawl space, central heating and air.

He thought the offer was too low.

I was able to offer 1 of the people who got back to me, but it was a little too low and we couldn't make anything work. 

Demand from buyers seems to be decreasing even though inventory remains relatively low.  

With $415 for a triplex that would give you roughly $105 per door which is good but I would be a little concerned with your Cash on Cash being as low as it is.  

My questions would be is it possible to find lenders given my low credit score?

In today's heated market, you might have 50,000 problems.

Inventory is always low here.