Property Investment Companies are a great way to invest your money if you want to make more. If you have a large amount of money and want to buy real estate, this is a great way to go. Not only will they probably know more of the ins and outs of the real estate world than you do, they should know more about the financial end of it as well.
You should choose one that has at least 10 years in the field. If a company has been around that long, chances are very good that they are very good, and a company you can trust. You should take your time, of course, to look at many of them before you decide on one, but longevity in the business is a good way to start summing up the different companies.