Looking for input from current agents/brokers on what tools they use to create listing sheets/flyers, postcard mailers, and other collateral (expired listing mailers, etc.)I'm trying to understand what options are out there that make it easy to design/create these materials to download and/or print.

These are non collateralized loans.

The plan was to use my current house as collateral and have the lien be on the duplex.  

One I paid cash for but it is the one I used as collateral on the line of credit.

There are other sites like FCI Exchange as well, but they tend to be the lower end inventory that real investors have already picked through, or over priced for the collateral.

Are you using real estate as the collateral?

Ask to look at their contract offers, ask if they understand and have used the following clauses in their offers; hybrid offer, delayed settlement, banking days, automatic extension, check funds, study periods, vertical break ups, front porch clauses, substitution of collateral, seller annuities.....to mention a few.

This is distraction and a sign of an unprofessional title company.So, if you have some special clauses in your contract, make sure you point them out to the title officer, here are some clauses that you want your title officer to understand and record;discount if paid off before due datesubstitution of collateralstutter clausesubordination clausefully assumable with release of liability clauserelease of additional collateral after x% is paid if a blanket mortgageprincipal mortgageinterest only mortgagehybrid if sold before x dateequity kickerseller participation clausefront porch clauserebate agreement at settlementdeed in escrow clausedelayed settlement clauseright of first refusal clausedelayed payment clausesubject to clausedelayed payment clauseThese are a few of clauses you need to alert you title company about. 

my current rental is in CO and so far i've only talked to WF who will close a heloc with the collateral property being an investment.i welcome any advice or thoughts.

That is to cash in hand.However, if you look to seller financing as a solution to your next purchase, you can give the seller a collateral interest in your other property.