I will still say though that getting a recommendation from a local investor, one in your market, is usually the best method of finding ANY type of vendor. It doesn't guarantee success but if someone you know has actively used a vendor that's usually a good place to start. Visit your local REI groups. There are many groups that meet across the country. Some post here on the Bigger Pockets Marketplace. Many post on meetup.com. Even facebook will have some. Networking is always a great practice and you never know who you might meet there and what good information they have to share.