Situation:Found a seller who wants to sell but doesn’t want to pay 300k gain all at once.Pure vacation property/second home.

I know that OF agreements will be whatever two parties agree on, but I'm hoping to gain a better understanding of what might be possible that I haven't considered. 

In July, the U.S. commercial real estate market experienced mixed results, with property price gains slowing, particularly among individual investors.

Let's hope we don't get "unrealized gain taxes"! 

How to get better odds of gaining property?

You could have someone on upwork build you a site, it will run 1500 and then hire someone for SEO which will run at the very minimum 200 a week for the 26 weeks needed to start gaining traction.

Can anyone verify the tax treatment as of today that a gain from owner occupant unit is applicable for Sec 121 exclusion, and a gain from rental unit is applicable for 1031 exchange?

The exit strategy is when you buy a property for a short term gain and if the market changes..

Rate will be lower with a higher down payment, so you'll cash flow more, but look at what you're saving by using that as a down payment vs. what you'd gain by putting less down and and using that towards the next property. 

Once I’ve gained rental income, I would like to finance a Condo and even more rental properties with my income from rentals.