SJ, thanks for contributing. You bring up good points.
We live in a house right now and I budget close to $1800/month to cover everything. Property tax, utilities, insurance, maintenance (this one is a lot) and contingency fund. Based on a square footage of 2000-2500, I don’t think a maintenance fee of $800 would be unreasonable leaving just utilities and property tax.
It’d come out about the same as maintaining a house.