Is the Hanover market something that anyone knows much about regarding its future economic growth in relation to the rest of this central PA area.

I'm not a climate or weather expert though. 

I look every day for off market houses to flip.

I don't know if shifting to MTR could generate greater interest but it doesn't solve the marketability issue and all you are doing is punting the root issue down the road. 

San Antonio is a hot market still for flipping.

You may want to get in touch with @Sharon Vornholt who has done a lot of marketing in this niche.

Quote from @Brendan Jones: For the homes, and or properties that you will use as a primary or a rental property one big thing I look for is infrastructure in the area, extrinsic value (I.e. hospitals in the area, schools, and job market), and the last thing is creature comforts for people (I.e. is a store to get groceries 1 hour away or 2 minutes away).

Older homes that aren’t elevated could suffer major damage when the next storm hits.Many expect market saturation in the coming months, as flippers are snapping up flood-damaged properties.

I bought a condo in Norman Oklahoma 3 years ago and due to the rental market, I have struggled to get another.

You can arguably make it work in any market.