I'm always on the lookout for new deals and strategies, and lately, I've been focusing on off-market groups for flips.

Instead of thinking everyone is n00bs, think of everyone as a potential partnership or source of marketing so that you can help them with the things you are great at, renovation, etc and they can find you the deal that you keep trying to find.

If so, try starting with the median list price in your target market. 

You've jumped into a very competitive market!

Feel free to connect if interested in the PA market.

If you want to network or ask specific questions about your local market, go to your local real estate forum and connect with investors from your area: https://www.biggerpockets.com/forums/86-local-real-estate-networking5.

Too many sellers are asking for prices based on the park being at market rent for 100% occupancy.

I have some properties that are in good condition that if I could get an offer of 85-90% of market value without realtor fees I would happily take for a quick sale. 

I'd gotten an on-market property under contract, but I found out it had massive foundation issues so I decided to assign it.

It sounds like you already have a great foundation with your rental and BRRR experience in the UK, and you'll find many similarities in the US market but also a few key differences.For location, I’d suggest looking into markets with strong population growth, economic stability, and landlord-friendly regulations.