There are many area hotels but all of them are only near Dexter.  There aren’t any hotels in Dexter. None of these hotels are officially recommended by MIFA and I haven’t set up a reduced rate. All have been used by teams who attended Dexter Tournaments in the past. Note there is a big hockey event this weekend. Housing may be difficult.
In Chelsea:
Comfort Inn:734.433.8000
Holiday Inn Express: 734.433.1600
In Ann Arbor:
Days Inn:  734-971-0700
Fairfield Inn:  734-995-5200
Hampton Inn North (off Plymouth Rd and US 23):  734-995-5200
Hampton Inn South (by Briarwood Mall off I 94): 734-665-5000
Clarion Inn (closest to Dexter):  734-665-4444
Quality Inn:  734-971-2000 
Best Western: 734-665-4444
In Brighton:
Holiday Inn Express:  810.255.4300
Courtyard:  810.255.9200
In Whitmore Lake:
Best Western:  734.449.2058