I think you are getting discouraged when 1 or two banks say no. I identify, I tend to do the same thing, as do almost all of us. The trick is to keep going after 7 or 8.
So make a list of the small local banks in your city, and credit unions. Speak to the commercial loan person. They may consider a blanket commercial loan. However, you will probably have to title the properties in a company name, so that the commercial lender can stay in compliance with SAFE, etc.
Also, you sound to me as if you are doing very well. But quitting your job to finish a rehab may actually help you in the long run. If you can't get a job, you may be forced to be a full time real estate investor. Most full time investors don't do their own rehabbing, they hire it out, and focus on finding deals. Or they do part of it, and sub out part of it. I think maybe if you had focused on finding a contractor who didn't cheat you, you might have been better off.
Go to your local REIA - real estate investor association - and meet some more investors in your area who are successfully doing what you are doing. They may be able to point you to a local lender who can help. And help you find an honest contractor.
In your situation, I don't think I'd use hard money - the carry costs will eat you alive if you are doing all the work yourself and it takes longer. also, if you can't refinance out, hard money won't help anyway.
Good luck, sounds like you just have a couple of bumps, you are doing well, I think.