The offer also come with very high earnest money and no option period.

Property used as home.If the property given up was owned and used as your home for at least a total of 2 years during the 5-year period ending on the date of the exchange, you may be able to exclude part or all of any gain figured on Form 8824.

After all lenders and agents will be motivated to keep deal flow churning and not have a stagnation period where all first time buyers sit on the sidelines saving extra for their down payments. 

I am a house hacker just north of Boston and I've got 2 duplexes since I started about 3.5 years ago but honestly, I'm not sure how feasible a third or fourth would have been in that time period.

If i can, is it fesable to ask the landlord that lease payment will be paid monthly and the Property purchase amount will be paid within the 24month periode?

Doesn't mean you have to amortize over that time period - for example if seller wants all their money within five years you can do a 15 or 20 year amortization with a balloon due at the five year mark.

Especially in real estate, there are situations where you might own something for a short period of time, but I think the main point of this statement is to make sure that you buy right in a way that is consistent with your end goal.

Most banks I’ve talked to require a 6 month seasonal period.

Period.

They can modify their list as many times as they'd like prior to their ID period expiring.