This is a duplex with a carriage house, so it's somewhat unique in this particular neighborhood.

This is also a rule of thumb, and each investment is unique, but general speaking I try to stay away from markets that have a declining rent trend.Where to find information?

Salut Philippe,2 possibilités:Prends ta facture de chauffage et divise la par le nombre d'unités (fait un pro rata par pieds carrés).

While our homes are larger and somewhat unique, and your expectations should be lower with more of a cookie-cutter 4 or 5 bedroom, our gross rents average 4-5x the mortgage payment or so. 

I have to definitely speak to the City, left a couple of VMs to city's development planning division folks.

Armed with the right knowledge and understanding, high cost markets become gold mines for the investor savvy individuals - this is anyone and everyone who is willing to put themselves out there to learn and network - thereby mitigating the mental and emotional aspects these unique markets tend to bring out in otherwise uninformed investors.

I think that would be the case if you had a unique property where there weren’t many comps to give solid data.  

I've seen investors that have only targeted 100 properties through driving for dollars close a deal, but their mail piece was very unique and the houses they were targeting clearly had distress.

All land not own by a person, corporation or other entities; is automatically owned by some political division such as a county, a state or federal gov.

I've lived in and visited a bunch of places, but western PA has some unique physical and historical features that lead to the SFR characteristics you describe.The chief one is that there is a disproportionate number of 1890-1929 SFR builds of exceptional, lasting quality out here.