Feeling trapped need help

[Justin Furtado]

So I bought my first home in 2010 in Huntington Beach with a first time home buyer assistance program. The program gave me 100k interest free, however it’s an equity share program where they will get 100% of 20% of the equity during the first few years I’m in the home gradually decreasing the more years I’m in the home. Stipulations are that it needs to be my primary residence. I really want to keep my house and buy another with low money down live in it for a year or a few then repeat the process. Can anyone come up with a creative idea on this or am I stuck and have to sell give HB their equity share and start over? Thanks