what is appealing about them?

That's a common thing that appeals to out of state investors I think.. 

It seems like yours is not as appealing as others available, or else the buyers won’t be backing out as easy.

Also I have some ideas but not sure exactly how I would attack the bigger parts of the curb appeal (not talking about landscaping, I mean things like windows, siding, and support posts)

There is a potential for homes that are accessible and require low maintenance, which could appeal to older buyers looking for long-term residences.

I made some nice curb appeal improvements, added parking spot rentals, added the U-haul dealer, improved internet presence, advertised in local papers and are affiliated with MySpareFoot.

Your curb appeal on your house will decline and if you live in an HOA be ready to get some complaints.  7.  

The cash flows are close at first, but down the road the 3 rentals look much more appealing.

Any suggestions for how to talk to guests so they know what to expect but the property is still appealing ?

There is also an opportunity to target the rental market with renovations that cater to both families and young professionals given its large, diverse population and proximity to educational institutions.Enhance properties to appeal to families and young professionals, focusing on durability and functionality, such as open-plan kitchens and multiple bathrooms.Example Investment: 130 Benedict Ave, Syracuse, NY 13210130 Benedict Ave, Syracuse, NY 13210 | ZillowLocated right next to the Syracuse University, and currently rented under market for $1,200 a month.