A cash advance is usually going to be very expensive on a CC, something like a home depot card probably does not even do cash advance.You might want to see what sorts of programs you can get from a lender to finance a flip and rehab, that way you know what sort of down payment you need to bring.

House being worth $700,000 would rent for $3,200/month (est.) and all in expenses are $2,300/month.

I'm in a very, very expensive part of the country and I could get a 14 sq. roof done for under $5.5k.The biggest item that scares me is the deposit. 

The rent should be high enough to over all of your expenses, with extra. 

Many people see this as an "expense" or "waste".

the challenges to reverse exchanges are that they are relatively expensive. 

The drawback is some properties are difficult and expensive to insure.  

Some of the larger expenses-Interior/Exterior Paint, Storm shutters for a few of the front large windows, added additional cabinets to one unit,  New refrigerator from Dent/Scratch store after old one died,  Laundry units that tenant pays +$50/mo for etc. 

. $50 maybe.....My point is that the rent is not negotiable...keep that separate from any expenses that you reimburse them for.

Cap rate is based on 40% expenses of the gross and 5% vacancy.