Go to the following link and review opinion 33-97.
http://www.va.gov/ogc/opinions/1997precedentopinions.aspThere are different types of trust funds and I feel you would be better off talking to an 'elder law attorney' before taking any action. The VA only looks at income and assets from the date the application is filed.
The company charging $1800 to file the application is very steep. There are some agencies that will do it for free. Most States have County Veterans Service Officers or State Service Officers that can provide the service for free. You can also visit the site VetAssist.org and they have step by step information that will allow you to complete the application by yourself.
Hope this is of some help to you.