The property has a gravel parking space. One of the tenants plows the area which ends up shooting some gravel over to the neighbors yard and on top of their small garage. The neighbors have reached out stating they are worried about damages to retaining wall, roof of their garage, and cleaning up the gravel in their yard. I will be reaching back out to the neighbors, but I am not sure what steps I should take.

Try talking with the tenant that handles snow removal, attempting to not have a snow plower shoot the gravel with some adjustments and add ons, what are some things to do?
Where can I look up rules and regulations for this kind of situation?

What have others done in this type of situation?

Are you referring to a snowblower? If so, there's a way to use them on gravel without scooping it up. Sounds like the operator needs to read the manual.

@John Teachout Thanks for the heads up. I know of 1 inch risers that lift the blower up to prevent the gravel from being shot up. Sounds like I'll have to have a talk about how to use the snow blower correctly after I figure it out.

A simple solution may be to back drag it. 

Does the tenant plow for others as well? Perhaps they may have insurance to cover damages. 

Not sure about rules or regulations, this is just good ol fashioned mediating a crappy situation. LOL

@Rob Gillespie Yes the tenant plows for the others.

What does back drag mean? Could I look it up through google?

Mediation, just comes with the territory lol.

Originally posted by @Mayson Madden :

@Rob Gillespie Yes the tenant plows for the others.

What does back drag mean? 

Instead of PUSHING all of the snow out of the way, the driver of the truck will pull all of the way forward 

and lower the blade within about an inch of the surface. Then back up the truck pulling the snow with him. 

One will never completely eliminate the movement of gravel when plowing, but that method seems to help a lot. 

Gravel drives suck, If you plan on keeping the property, asphalt is pretty cheap and makes the place look amazing!