Do you have a car or are you looking for somewhere very close to the hotel? Unfortunately the hotel is in an urban area and most of the parks are a short drive away. Some great places for a run would be Stoney Creek Metro Park (small fee for entrance but it is a HUGE and beautiful park with a golf course, disc golf course, and lake). http://www.metroparks.com/parks/pk_stony_creek.php

Another great park is in downtown Rochester. You could run around the park or the Paint Creek trail (nicely converted railroad tracks) runs right through it and the trail goes for ~20 miles from Lake Orion to downtown Rochester (http://www.paintcreektrail.org/). A map can be found at http://www.rochesterhills.org/reference_desk/uploads/PaintCreekTrail.pdf

There is also Firefighters Park in Troy which is only a 10 min drive from the Marriott (http://www.ci.troy.mi.us/ParksRec/Parks/Firefighters.asp)