(particle board vs wood) We have bought entertainment centers on Amazon which have been well made.

You cannot use rental income above your mortgage payment to help qualify for a larger mortgage, but you can utilize 100% of the lease income to offset so that should help you qualify for more of a mortgage. 

Most serious and qualified tenants are searching on the major 3rd party platforms you mentioned + realtor.com, redfin, and a few others.Apartments.com & homes.com are owned by the same company and may offer some additional marketing options.Another strategy to consider here is social media - video marketing.

This is why you need to do a ton of due diligence on them and make sure they have skin and the game and something to lose.

Basically you stay working there and rollover funds into another qualified plan.   

Problem was it's a common perk for Chinese restaurants to provide lower paid staff with room and board, and without the upstairs apartment, renting an apartment in nearby towns for staff is a problem with rooming house regulations beside a major expense.

I don't care if they are qualified or not.  

Mooresville Flip and Capital GainsIf you live in the Mooresville property for less than two years before selling, you likely won’t qualify for the capital gains exemption (which requires living in the home for 2 out of the last 5 years).

Quote from @Roy Lam: They only qualified for two bedrooms voucher, but i have a three bedrooms  singles house. 

I'm new to Bigger Pockets - Does anyone have experience investing in Qualified Opportunity Zones?