This is how I do it as well, although I'm only mostly remote. My initial contract is usually 520 hours (3 months of full time, longer in wall-time, as I prefer

This is how I do it as well, although I'm only mostly remote. My initial contract is usually 520 hours (3 months of full time, longer in wall-time, as I prefer to work with 2 clients at any given time) with a 10 day no-fault termination for either party. I've yet to have a client which didn't extend after the first 3 months.