I think it will be extremely tempting for these funds to select the "low-cost" suppliers for everything from materials, to service people & call centers.

Marketing and advertising your property: Through long experience, a property manager will know exactly where to market your property and how to craft compelling advertising materials.Finding the right tenants: Experienced property managers are experts at finding good tenants, and will take care of all the details, including the securing all criminal background and security checks, running credit reports, verifying employment, and collecting previous landlord references.Managing tenants: The property manager will handle both routine and emergency maintenance, take care of routine inspections, and manage any situations where conflict resolution is required.Managing vendor relationships: Property management companies have relationships with maintenance workers, tradesmen, contractors, suppliers, and vendors that it's almost impossible for an independent landlord to duplicate.Ensuring that you're in compliance with regulations and property laws: There are a multitude of applicable laws and regulations to abide by when renting and maintaining your rental property.

As you explained, I work on the disposition side of the deal by bringing buyers to the contract holder (or supplier as I call them) who is on the acquisition side.

make some phone calls to the agent or broker, don't list it, it will save you bucks anyway.On my end though, I like to concentrate on the big picture, acquiring projects, managing manpower, calling suppliers for better prices.

Definitely follow the state Lien Laws and require sworn statements and lien waivers from the contractor and their subs and suppliers.

I have deep knowledge of the local market, buyers needs, contacts within towns, rules, regulations, architects, and builders, contractors, suppliers. 

The fastest way is to personally guarantee business credit products and skip past things like net terms with suppliers that many gurus will teach.

Its how you call your subs and suppliers .  

Found a builder locally who can do new builds and builds them well for $300k, thinking the only way to get a good deal is to buy in scale from him - say 4-5 duplexes vs just one and if doing that I'm pretty sure I could cut the cost in some areas by having other contractors come in and complete some work or utilize local suppliers I have connections with. 

I will send you a DM and I can run the window material through a supplier I use.