For instance, I can't re-leverage them as easily, nor can I cross collateralize them to name a few simple strategies. 

Sounds steep, but depending on what your collateral is and how far a personal guarantee goes, it might not be completely out of the question.

I might be able to help but the solution I have in mind is someone that will finance 70% of the deal and require 1st position on the collateral.

Collateral, security for their investment.

@Tim Herman she can pledge the property as collateral when she has it under contract. 

I've been trying to use one of my assets as collateral for the $50K , but I've had no luck.

I spent 20 years of my career overseeing credit/collateral operations for "a major wholesale bank" and have been involved in the closing and aftermath (collateral liquidation) of over 500 savings and loans and banks in the southeast and liquidation of billions in mortgage collateral.  

Hard moneylenders are collateral based and typically require first position on the property.To boil it down "A hard-equity loan is flexible and quick.

The loans must be non-recourse to the Exchange Accommodation Titleholder, but can be guaranteed by the client and/or cross collateralized.  

Jesse,After a refresher on a Bigger Pockets advertising policies, here is my updated response:You should approach a hard money lender and ask that they qualify and approve you as a borrower first and then as your targeted properties become available, you should bring them to the lender to be subjected to their collateral underwriting and approval process.