Nextdoor Investor Wants Advice

[Zee Ayezain]

Nextdoor neighbor rehabbed the property and added a level. It's now a 4 unit 1 bedroom building. They had it sitting for almost a year and a half with no work and not being advertised for rent. They are now looking at putting it on the market for rent. They asked me for help in figuring out the price point and so on. 

Are there any drawbacks to sharing info on the market with them? 

Anything else to keep in mind?

We share a back yard and i really want them to get good tenants so that we don't have any conflicts or issues. 

Thanks