The following websites are useful when researching state-specific real estate information.
State of Michigan
Secretary of State
State Bar of Michigan
Michigan Institute of Continuing Legal Education
Michigan Department of Labor and Economic Growth
Michigan Property Tax Estimator
Statewide Search for Subdivision Plats
Statewide Search for Corporations
Michigan Assessors Association
County-specific real estate information can be found at these links.
Antrim
Benzie
Charlevoix
Cheboygan
Clare
Crawford
Emmet
Grand Traverse
Isabella
Kalkaska
Lake
Leelanau
Manistee
Mecosta
Montcalm
Mason
Osceola
Otsego
Wexford