depreciation - "in service" even if friend is living there?

[Reuben Newber]

hello BP community, I am in the very fortunate position of buying a little SFR for a long-time friend who has fallen on hard times and is in need of housing.

If they pay a very small amount of rent each month to me (basically going to charge them just enough to cover property tax/operating expenses), is the property still considered "in service" / can I deduct depreciation for IRS tax purposes? If it matters, the property is in Texas.

thanks!