Although I've considered a future line of credit against the property as my best long term option, I would need to pay down the remaining balance first.

Have you looked into local credit unions or alternative financing programs?

I’m just giving credit where credit is due. 

I've found this to be super helpful: When someone inquires about the property Thank them and Send them the pre-requirements (Income, credit, no evictions) and ask if they meet them.

So I put $1600 on a credit card for a down payment and then pay $500 a month until the full amount was paid off.

At this point, I would recommend having a line of credit to cover these things so you don't have money sitting in the bank doing nothing when it could be put to work.I have 33 units, no debt except for mortgages, and excellent income.

There are loan programs that will do a 20% down payment with a 680 or above credit score. 

After I got an LLC set up, I was set up with a credit coach and he is helping me get my corporate credit set up.

@Tyler Garza almost every property I purchase I do so with the rehab credit strategy.

The masterminds often encourage students to finance the new-car like entrance fees on a credit card, on the promise of just a single deal covering all the entrance costs.