Chicago has spent, since late 2022, $460 million in its New Arrivals program, which shelters and provides other services to international migrants (here and here).

Massachusetts is spending at an annual rate of $1 billion for its shelter program (for all recipients, of which international migrants are a major share) (go here).

Assuming that the total cost of shelter (lodging, food, admin expense) is $200 a day, to shelter 10,000 persons for 30 days costs $60 million.