In order to establish rental income for a home you have to consider several factors. The first is what are area homes renting for? The second is based on the condition of the home you are trying to rent. In my experience 4 bedroom homes in the area are desirable property to tenants. Without seeing the homes I can give you an estimated rent for a 4 bedroom home in average condition: $1200-$1800. There are property management companies that would help you get a tenant only, not just manage the property. Hope this helps!
A local agent can help you establish a rental value and find a tenant. There will be a fee of course,always negotiable. Currently there is a 4 bedroom twin on Cresheim Road for rent $1,550 per month. The last 4 bedroom twin to rent according to the MLS was in June 2011 on Mt Airy Ave for $1,850.
Contact a local realtor for help.
Fran and Mark Redding
Prudential Fox & Roach, Realtors
1010 stonyhill Road
Yardley, PA 19067
Obviously it all depends on the house,single detached or twin,location amenities etc.
Having said that $1600+ per month would not be unreasonable for the average property. The better the house and location the higher the rent. Get a local realtor to help if your looking to rent either as tenant or landlord.
Fran and Mark Reddiing
Prudential Fox Roach
1010 Stony Hill Road
Yardley PA 19067