We do plan to sit down with a few credit unions over the next few weeks and getting more specific guidance on what they suggest.

Can someone who has challenged credit still get started in real estate investing?

You need to factor for advertising, lease signing, background/credit checks, etc.

I'm in the process of evaluating a low income housing tax credit property for potential investment. 

Elements Financial, KeyBank, Energy Plus Credit Union.

Part of the impact is my credit was shot and I am rebuilding it.

Depending on what type of underwriting method a Mortgage Broker found most suitable for your scenario + your credit score, you could get slightly lower interest rate although 6% is a good number to plug in to be conservative.  

If you have the down payment and just need someone's credit let me know.   

Poor account servicing and not very customer focused

Check the local banks and credit unions. 25 year amortization is more typical for a loan that size so I would make sure 30 yr am is accurate.