You're not going to get stick-built home prices for them.Zoning may also prevent them being placed on lots not zoned for them.Check with your local officials regard what can and cannot be placed on a lot in your area.You might also want to explore modular homes: houses stick-built in a factory and shipped to the homesite in pieces ("modules") on flat bed trucks.

Disclaimer: While I also @ David KrulacI have bought a house in the city of Philadelphia July 2016, the recording happened on that time and it has been a year so far , I was selling the property but the buyer insisted on using certain title company which made all things complicated and asked about the notices were sent by the sheriff's office to the old owner, which I never had or received or even sent to me that the Sherrif's send a notice to the old owner.Philadelphia county law said if it is a vacant property the redemption period is nothing ( this property was vacant for 10 years) if the property was occupied it is 9 months from the sale ( usually becomes a year with the recording time ), which already also elapsed, the title company who was closing the deal refused closing and asked me to do A quiet title action or lawsuit , so the old owner or his hires won't have any rights or legally won't have any rights in the property, then I was about to file that but the City officials who are responsible for the court process advised me that this case will be complicated because I will have to find that  old owner who does not have any rights legally now already and service him the court case or his hires if he is dead.I am seeking your advice on the matter, and if you know any title company that is aware of the right laws and will to close for me this deal with any buyer please help me Ehab T.

When we inquired why after all of these years it was still on the list, we were told that it had never been officially cleared.  

I have yet to do my first official deal but I have studied quite a bit.

Normally speaking, sub 5 units residential properties do not have officially bankable pegged initial cap rates.

Personally, I don't officially contact the tenants until I own the building. 

If it's a recorded document then yes, you can get an official copy from the clerk.

I'd like to keep the renters there if possible...I actually don't rent them the basement (officially though we allow them to use it for laundry and storage) and I did let them know when the rented the place that we would be doing work down there while they occupied the unit. 

On the second of the month, or day following it is due, a landlord may officially issue notice requesting payment.

I'm asking in regards to the process of 'officially' buying the property.