Currently I only have a couple thousand saved, but I have drastically reduced my living expenses by moving in with relatives so I am no longer paying rent (which was 1k) I also anticipate a higher than average tax return this year which I'll also save.

I've always been interested in real estate as my dad was a general contractor for almost 30 years (I spent many a sick day, summer vacation, or earning a few extra bucks on the job site with him) and my grandfather before him built large commercial structures.

should I buy double the amount of $50k homes, earn more on rentals now but take smaller returns on the sales?

For example if companies reduce their footprint by 50% of space needed imagine how much inventory is on the market with no new builds.I like retail better.

If you don't think I could qualify for a loan under my current circumstances, let me hear it.I want to contact a mortgage broker to get preapproved for a loan but I don't know if my earned income, as well as other factors would allow me to qualify.

Since it is not earning much as a flip, my plan is to rent it for a few years, take the tax break, hope for some appreciation, then sell.  

I want the seller reduce the price, but seller do not agree.

If I needed tax advantages become my earned income was high, I may buy another rental. 

Usually the house was originally built as a single family house but over time redesigned so the owner could earn some income.

They are generally newer properties built within the last 15 years with top amenities, high-income earning tenants and low vacancy rates.