Consider financing options like hard money loans, or FHA loans for house hacking, and focus on areas with strong rental demand near the MA/NH border.

I don't think the future will be kind to the investors who bought cheap houses in a big community of other investors. 

When you say as long as its not directly in flight path, meaning - when plane flies over the house?

House brand names.

I believe it is limited/restricted in the city of San Diego for low income housing. 

The house was flooded to the tune of $70,000 in repairs. 

Jacksonville has been building at record levels and is/was one of the highest cities in the country delivering new housing units as a percentage of existing housing units.

I obviously want to get the best tax benefits and write off the expenses for the house and repairs I have done.

Consider exploring strategies like house-hacking or BRRRR, and connect with a mentor or local meetups.

Cash out refi only if the rental income significantly exceeds the monthly payment and you want liquidity to invest elsewhere.2.You can maybe do a HELOC if you want a smaller loan that doesn’t involve refinancing the entire house.3.