You definitely don't want to be paying a monthly fee or a % transaction fee when you are initially just looking to buy properties for yourself.  

You'll get a little chunk eaten up in refinancing fees, and such as well. 

Those are all just examples, but you can see how that debt service number could vary greatly between a 30yr mortgage at 5% and a hard money loan that may be 12% interest only with 1-4% fee up front.

They are world's apart.If you are not going to do commercial full time then you might want to just refer it off and get a referral fee if it closes.

3) Is there a usual or standard amount/percentage for the Option Fee, rent credits, and any other fees/charges?

@Chris Purcell Quite honestly, I have never analyzed a deal taking into account the HML costs/fees.

I'd even pay a small fee for this.I don't charge for applications. 

This is a just fancy real estate sounding way of saying "fee you ain't getting back" 

If you did decide to take the GC to court it would take years to get your money back plus legal fees.

They charge leasing fees even after the tenant they placed trashes the home and abandons it.