The the basic rehab would run me $10k-15k and I have a credit card limit of $35k and my interest rate is 18%.

Go to REIA meetings in your local area, meet people and try to collect as many business cards as possible.

My only debts are my student loans and credit cards. 

The best way to go about it would be local REIAs (the latest one I attended had at least 8 investors looking for a wholesaler and gave me their business cards) and Biggerpockets!

I recently had an investor contact me and asked if I can work with him, he found my business card on a home (I'm a real estate agent in the Brooklyn area)I think it's a great opportunity and I definitely won't mind working with him but how do I make sure he will pay me for my services?

Personally, USAA is good for car insurance and a good rate on a credit card but that is about it.

3. dump money from my credit cards to my savings & pay with "cash" & get a renovation loan to fix it up?

In this regard, thelocal branch manager suggested setting up a separate business account to use for tenants rent check deposits.This way the main checking account isn’t exposed.The goal is cut out using a drop box and also save tenants the addition ACH or credit card charges.Anyone do this with no hassles?

Separate checking account, credit card...

Saving up right now while paying down credit card debt.