@JoJo Diego If you use a Hard Money Loan, which most investors use to buy and rehab, personal loan can be cheaper (my credit union Alliant starts at 12%).If you get a mortgage, then the mortgage option will be cheaper.  

We undertook a remodel to our primary residence that is converting it from a 2bd/1.5ba to a 3bd/2.5ba (with no changing of exterior walls or foundation/basement, thus lower cost than a bigger remodel), and will be aiming to get a HELOC with Alliant Credit Union as soon as the remodel is complete.

I hope these credit unions know what they are doing because they appear to be helping to pump air into any bubble that might be forming:(1) One local Pensacola credit union (Gulf Winds) is currently offering 100% financing on mortgage loans.(2) One of the national credit unions (Alliant) is offering 0% down for "well qualified" first time home buyers and 3% down for non-first time home buyers. 

I also found an NCUA-insured credit union (Alliant) that offers a similar high interest rate on its savings account.These online accounts are a good place to park cash while waiting for the next investment deal to come along.For example, a balance of $250K at an interest rate of 1.5% generates $300 a month of interest income, which is not a lot, but it's better than nothing.

@Trevor Rutherford , please go here: Fat Wallet Finance - Best Balance Transfer Credit CardsIf you qualify, you can get 0% for up to 18 months with Alliant Credit Union.

I loved my ING account but am going to migrate towards CU such as Alliant CU (0.80% savings) or PenFed CU.

Mine pay around a 2% rate of interest right now and the principal is insured by the FDIC or NCUA (Alliant is the only credit union I've found that pays this high rate).

I've done some research already around Comerica, Alliant CU, Stanford CU, BofA, and Wells Fargo.  

Alliant credit card - 2.5% Cash back , 99$ annual fee.  50k credit limit.