Commissions are the generous and similar to other agencies. 

More often than not, they are more accommodating to providing you with a more generous line of credit or terms. 

Most REI's I've met are very generous people in terms of sharing their knowledge and contacts.In terms of the local market, there are websites that help you find good areas to invest in and you can get a simple analysis from Redfin like this: https://www.redfin.com/city/16661/MO/St-Louis/housing-marketBut, I think a lot of cities like mine probably have a ton of nuance in terms of everything that goes into understanding the local market street by street.

ARV is very generous.

Obviously I would like to give them plenty of time to uproot their lives, but also want to balance being too generous or giving away way more than is necessary.Thoughts? 

If you want to be generous about it you could tell the tenants your operating costs are consistently going up (which is true), share the current comps with the tenant, and ask them what kind of increase they would be comfortable with.What are peoples’ thoughts on where rent’s should be set or the best way to get them up if you fall behind?

It also, currently only has one of the only STR options that has a true a live, work, and play mindset with a generous list of amenities, including restaurant. 

The small gestures of exceeding expectations can make a huge difference.Don't be the person who can't fulfill their promises.

You might be offering a generous amount (I have not seen the property or run the comps).Real estate is a relationship business. 

I think the amount of responses you got was more than generous in light of the very small information you gave about your situation.