What other expenses are there (snow removal, lawn care, internet, utilities)?

While the wealth of knowledge and experience on BiggerPockets is wide and deep, I would not trust a decision like this to the internet, I would ask you CPA and if you do not have one find one who specializes in this sort of thing.

I have only 3 doors now but I'm getting more soon.Some one mentioned REI Hub so I'm looking for some user reviews and other suggestions that you may have experience with.I downloaded the free 30 day trial of REI Hub but I think it will take more time to set up than the help it will provide.

It's concerning that Bigger Pockets admins continue to leave all of Matt Motil's classified ads here on BP where he was fishing for victims for his Ponzi Scheme.https://www.biggerpockets.com/posts/user/mattmotil https://www.sec.gov/news/press-release/2023-196

Depending on the # of licenses, Costar might range from $300-$450/month per user.  

Search around on the internet or possibly if they’re friendly at the local town offices and create a list of group home providers.

You can buy something like a cheap Arlo camera system at Costco and pay for the Internet connection in one of your units.You could ask law enforcement to do routine drive-bys or safety checks.

Why don't you "do better" and be kind to Internet strangers instead of leaving them condescending messages?  

@Richard QueenHappy to answer any questions you have over an initial phone consultation if you would like.Also, here is a link to reviews from 30+ investors who have worked with us over the years:https://www.biggerpockets.com/users/ZacharyCole/referencesLink to another forum discussion with many investors who have worked with us previously:https://www.biggerpockets.com/forums/92/topics/518583-feedback-on-renttoretirement-and-zach-lemaster?

First of all sure, maybe you did it and had good time, buttt from what I've read all over the internet its basically crap.