One other thing is that I paid a lot in points to buy down my rate which made the mortgage initially expensive… It will also take a while to refinance (a couple years) so I don't want to wait fully for that option eitherIf my tax rate is 30%, is it right for me to think that the cost of paying interest is ~5% instead of 7%?

Currently as a 5 bd 2 ba it rents for $2500 but I'm finding it hard to increase rent just due to the fact that there's not many people out there looking for a 5/2 to rent or else they would just buy.

Is labor usually $30 a board, plus you buy the supplies for them too?

My wife and I have been buying, flipping and renting for 15 years.  

If your lease says nothing about required notice, you may be able to hold them to the extra month if they told you in writing.

I have expanded one park but purchased 9 overall and I will tell you that you can get a much much better deal buying existing and scaling it.New parks are extremely time-demanding and take a lot of capital.

Tell them to buy a portable version?

I have been saving since I was 14 years old, and I am on Track to buy my first Duplex (house hack) while still being a senior in high school with my Parents cosign, I turn 18 In a few months.

Looking to buy a small condo/house/townhouse for a summer get away for parts of Jun/Jul/Aug.

I would also have a conversation with the contractor and inform them that you will not pay for any extras that are not approved with price and terms are agreed upon first.