@Troy Kerr first of all, congrats on your first rental!
$2200 to $1850 seems like a pretty big jump, I'm curious how you arrived at that number. you want to make sure you are looking at other properties in that area/neighborhood and comparing the rents. Lowering your rent to fill a property faster is not a bad strategy, but you don't want to cut yourself too short. In my experience, an inflated rent will attract desperate tenants... and you probably don't want that.
You can definitely raise the rent when the lease is up. Although, if you are going up by a couple hundred dollars it would be wise to give your current tenants enough notice as their income may not support such a big hike; you may have to fill it with new tenants.
As for the property management question, I am not a big fan; especially on such a new property. I remotely manage two properties (1 built in 2005, the other in 2007) and I field about 4 phone calls a year... Simple things like the garbage disposal clogged or the HOA needs them to pull weeds. I'm not saying you will have the same luck, but if you have a few minutes to check your email and make a phone call then you are capable of doing a property managers job. $185 a month to do nothing for 10 months out of the year seems like a waste of money if you only have one property to manage. Of course, filling the property if your tenant moves out is more complex, but if you have your paperwork and policies squared away, it is just as simple.
There is some great information on this site about managing your own properties; you should check it out and get comfortable with what is involved and save yourself some money.
Hit me up if you have questions, I will be heading to the Virginia beach area when I retire from the Air Force.
-Mark