I sold a rental property in 2018 and included in return. Property manager just invoiced expenses he paid on my behalf in 2018. Do I amend the return or include in 2019?

[Hal_Al]

Include on your 2019 return, since the expense was paid in 2019.

You will put it on Schedule E, for that property, even though you did not own it in 2019. You had "rental activity".