@Dailyn Souder
First off, congrats on paying off your property! This can be a major cash-flowing asset for you & your family. Kudos to you, because I am sure that took a lot of consistency and determination.
To answer your question about rental rates,
1) You should do some market research to see what comparable properties are renting for in your specific neighborhood or close by. Rent-o-meter, Zillow, apartments, etc. are great tools for checking rental rates and comps.
2) Your rental rate should not be reflected by the paid-off mortgage. In other words, you should not lower rental rates because you have it paid off. That would be doing you an injustice for actually paying it off.
3) I'd suggest never discussing your mortgage with any tenants. Worst case scenario they do something intentionally to hold you & your paid-off property liable. I'd encourage you to speak to an attorney to make sure you are set up with good protection to cover any incident that may happen i.e. umbrella policy or increased liability coverage.
Recs
Craig Curelop- The House Hacking Strategy: How to Use Your Home To Achieve Financial Freedom
Chad Carson- Small & Mighty Investor
BiggerPockets & BiggerPockets Rookie Podcasts
Good luck! Feel free to reach out if you have any more questions :)