No ONE structure is suitable for all.

If that’s not suitable to them they can always stay somewhere else where the landlord keeps the place barely livable

And then that has to be compared with how much it would cost to build/have built a suitable structure in that location.My guess (purely speculation) is that since it would have to be new construction, the return on the dollar invested wouldn't make it worth it.

So you'd probably screen them out of your tenant pool anyway.I think the restriction is more about wanting to specify income source because you think that a person with a particular profession would not be a suitable tenant.

Are the electrical wires suitable? 

I assist in finding investors suitable flip or buy and hold properties. 

You can message me for a sample contract I've used before, but I highly recommend you have an attorney draft one up or at least review it to make sure it is suitable for your deal. 

@Wendy Noble I considered buying the paint - but truthfully we are pretty far apart on the colors, so I don't think they will want anything I'd consider as suitable for re-renting (which honestly would be in the beige / white category).

How renters find out their suitable home or apartment by a broker?

It might not matter now as you live in one unit (I assume) but down the line when you rent both units and need to get 2 rental suitabilities it might be a problem if zoning is not suitable for multifamily.