What's both fair and enticing?

Ensure that your homes are clean, have fresh paint jobs, no funny smells, and have electricity/heat.

@Steve Burrell Hi Steve, Pittsburgh has a fairly decent market of buy and hold rental 100k properties.

After these preliminary steps https://www.biggerpockets.com/forums/552/topics/562694-fl-mortgage-broker-ensure-listing-agent-presents-offer-to-seller  1. 

IRR sensitivity tables around rents and exit cap rates show that many B and C class properties can absorb a fairly substantial compression of rents and cap rates and still remain profitable.Under that stressed scenario, what's interesting is that the passive investors on deals with preferred returns appear to do fine but the sponsors will not be making much money. 

Most of the duplex to quad you see that meet this rent to cost ratio have one or more items that disqualify it from it being something I would purchase.However, seeing the land is already owned and it is to be better leveraged it seems to be fairly easy to achieve far better than a 0.75% rent to cost ratio on rented ADU buildings. 

I just want to ensure that we request enough data from the seller that we are able to make an informed decision based on historical property data and not completely on assumption.

It’s a fairly simple look up..

I'm also fairly sure you'll have trouble finding a tenant that can afford $2,650/mo rent in the area. 

From my Fair housing attorney:“Did you see that Saint Louis Park passed an ordinance that anyone buying a property and raising rents or giving notices that have an adverse effect on affordable rents – will have to pay cost and relocation of up to $4500 per tenant?”