The GRM was one of three ways our appraiser valued our property. The other two included looking at recent comparable sales and taking a "cost" approach of what it would cost to build the same house today on bare land. What seemed crazy to me is that all three approaches came in within $5K of each other.
I agree with what @Sam B. said about local vs. remote, but will also stress that there are sooo many ways to get creative with real estate investing and that each situation is different. My wife and I are doing an FHA 203k loan on our triplex. This means we have to live in it for a year, but we only have to put 3.5% down. The triplex actually doesn't cash flow well (about $140 a month after a 10% mgmt fee or under $50 per door) but because we have so little out of pocket, our cash on cash return is still very high. For us there is another benefit. We intentionally did a high rehab loan which hurt our monthly cash flow because it brought up the monthly payment. However the loan has about $30k set aside as a contingency reserve. If that doesn't get used during our rehab, we get in the form of a check which we can use to pay back our down payment and fund our next deal.
I bring this up for two reasons. 1) If 10% CCR is your criteria, let's keep analyzing deals and thinking creatively until we find one that works; and 2) Every deal is different. We're in a sweet deal right now which you'd never qualify for without living here, but your reserve of cash can open up deals for you that many of us could never get our hands on.
I'd recommend hopping on Zillow and trying to analyze a couple of houses every day. I sent you my sheet which makes it pretty quick and before long you'll notice certain houses that are better deals than others. Then, it's just a matter of being ready to strike when you see that deal come up where the numbers make sense.