(we got notice of ANOTHER price increase from our suppliers in early August!) 

I'm not sure I will get benefit to the upgrade, but I'm positive I get benefit on BP in general and will feel like a leech if I'm the only one seeing the upsideBtw, I may have already received that piece of advice in another thread last week related to discounts on materials suppliers.

Looking for some new contacts for window installers and suppliers.

I would suggest you find out who the chemical (soap) supplier is and the maintenance person and talk with them.

Some restaurants has a manager for the kitchen, responsible for purchases, because he knows best what to buy and how much, but when you're not watching him, they make deals with suppliers, and pocket payoffs on the side.I confirmed my dad's observations speaking with acquaintances in the restaurant business.

If there is a labor strike that slows shipping, or a manufacture supplier has a fire or other matter, they may not be able to supply materials.

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 .  

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