Making an offer without see the property

[Gilbert Lugo]

I know a lot of you veteran investors have been doing it for a while but just want your 2cents on making an offer without actually walking though the property first. 

The background to my question come from the fact that in my area there is a property that I would like to make an off but on the MLS and other portals the photos of the property are limited and according to the realtor it will only be shown after an offer is accepted.

Wonder, what methods do you’ll use to evaluate an offer on a virtually unseen property? Also what what precautions should be taken?

Thank you in advance!