Make sure that you go with a reputable, credible firm.  It might be tempting to go with an assets managing firm which does a lot of fancy advertising, even though you have never before heard of them.  However, quite often, upon hiring such firms, you come to discover that they are really  not punctual or responsible, which leaves you in a bad spot.  Always research a potential firm before making the commitment to hire them.

Using an established property management firm is hugely important.  The longer a firm has been in business, the more credible they likely are.  Do not be lured in with the promises of potentially fly by night companies.  You need to know that your firm does a good job and has a solid reputation, otherwise you could wind up using an asset firm which actually has criminal records, or no experienced.  Look for a registered firm instead.

Every managing asset firm is different.  Some are more experienced with residential properties and assets, but others are more experienced with commercial properties and assets.  Know your needs before you start looking at different firms.  You want to make sure the firm you choose is capable of fulfilling your needs.

The firm you choose should ideally be located in somewhat close proximity to the property or asset you want them to manage.  That way, the executives will be able to respond quickly to any problems you have.  Going with a firm that has a help line is always a good idea because of this.  That way, no emergency or urgent matters will go unattended for very long.

If your investment is commercial, then you may want to go with a property manager and/or company which has a large clientele.  The size of a client base can say a lot about how responsible a management company really is.  Moreover, they will likely be responsible when it comes to advertisements, taking on new tenants or customers, conducting interviews, and finalizing sales or leases.  A good company will be able to forecast the value of your asset and it will be able to give you advice about when to seek profits for your asset as well as when it would be a good time to get rid of it.

Once you have chosen a good, reputable firm that offers high quality, complete services, you need to make a personal visit to the firm.  Not only will you be able to make a deal, but you will be able to gauge the environment of the company and get to know some of the people who work there.  More importantly, however, remember that all the details need to be discussed and that a formal contract needs to be drafted, protecting both you and the company.  As such, each of you should receive a copy.  This will make things much easier and smoother in the long run.