usp45ct
NES Member
That's about all you can do - read as many reviews as you can, try it out if possible, and then plunk down the cash. I'm a newbie who just bought his first 1911, an R1, and so far I love it. A little over 200 rounds through it with zero issues. FWIW, I've heard good things about RIA but I had trouble finding one... plus Remington is running a $75 rebate until the end of May.
duece, who is dealer on here in NH, has a few MA compliant RIAs I believe.