Now, some of these answers will depend on what state that property is in, how much equity you have, and a couple of other factors...but you can certainly seek out other lenders about a Line of Credit on an investment property.  

I called Home Depot, they told me to dispute the credit card charges so I did.  

sometimes to reduce borrowing costs, I'll use a hard money loan solely for the purchase, and then pay for the rehab in cash or use a 0% credit card (I don't recommend that for new investors!)

Go to etsy and search for "rental property tracker" and you will find hundreds of nice spreadsheets to track up to 20 rentals.

Depeding on the amount get a credit card that has no interest for 12-18 months. 

If i can invest it and make a significant better return after tax than paying it down I would do that but in this instance you will never be able to achieve returns that match credit card debt.

Next year i'll hit top pay and should start bringing in 1.2-1.3k a week. and the year after that i plan to move to linehaul and make about 2k a week.I do have a lot of debt, or at least it feels like it to me. the breakdown being;23k in college debt i got getting a bachelors that i never used across 5 loans ranging from 3 to 5% interest rate5k in bank loan debt i got getting my trucker cdl a at 12% interest rate.2.5k in credit card debt from not having an emergency fund and then having emergencies.

If the person managing the synidation does not have a pre-2007/2008 track record, that is not one I would get involved in.

You’re generally working with tenants who, by definition, have lower income and often less favorable credit.

Certainly track record is very important, but track record is so much more than deal performance.The last decade was a consistent bull market so almost anyone could put some runs on the scoreboard while learning little to nothing.