Need help evaluating a property

[Jefferson Harmon]

Recently I sent out a bunch of letters to tired landlords in my area. I had a number of people contact me. One of the people that contacted me owns 8 units on two tax lots that are attached through the backyard. I need your help in the evaluation of these units because the 8 units are: one 4plex, one duplex, and two SFH. Most are 1bd1ba and around 1,000sf. The duplex is vacant as well as one of the units in the 4plex. Rents range anywhere from 750-950(a little low for this area). How would I evaluate these properties? The seller wants the sell both of them together. They will probably need 100k in rehab.

Thanks in advance!