In that scenario Section 8 tenants are the least risky tenant base. 

Based on some of the research done, I am inclined towards starting out with a small multi family investment property (2-4 multi family home).

In that scenario Section 8 tenants are the least risky tenant base.

Based on its price and rental income do you think it is worth it?

Typically, the tax is based on the assessed fair market value of the property at the time of the transfer, even if it’s not a traditional sale.

If your brother is an E5 or higher he can live off base.  

On the surface, the deal seems appealing, but there's a catch: the asking price is $475,000, which is about 18% over the market value (based on comps and DealCheck estimates around $402,000).Details of the DealProperty: Duplex, 2,400 sq. ft., Purchase Price: $475,000 ($197.9/sq. ft.).Estimated Market Value: $402,000 ($168/sq. ft.).Financing Terms: 2% interest rate, with a 9-year balloon.Unit B Income: $2,049/month (Section 8 tenant through November 2025).Unit A Income Potential: Similar rent or higher; Section 8 cap for the area is $3,234/month.Monthly Loan Payment (P+I): $1,386.Cash Flow Breakdown (if both units are rented at $2,049/month):Gross Rent: $4,098/month.Vacancy (10%): $410/month.Operating Expenses (37.3%): $1,376/month.Net Cash Flow: $943/month.Key QuestionsWould you be comfortable paying an 18% premium for financing at 2%, especially in a market where current mortgage rates are closer to 7%?

Purchase price: $160,000 I purchased a two story home by a military base from a family member for $160,000 but it is worth more.

I would not advise to steer clear of this test based only on you having a job.

Just by having those two traits they are in the top 25%, based on my experience.