If you want to purchase another home without fulfilling these criteria, VA will only guarantee your total outstanding loan amount up to the county loan limit of the home you wish to purchase next.There may be other restrictions such as how many you can have or how many in a single city.

In return for the City's rehabilitation assistance, participants agree to certain long term (5-20 years) rent and occupancy restrictions which provide for the continued availability of the housing to lower income families at an affordable rent.

Generally - you can make a referral fee on these types of loans if they are 100% purely business purpose - a lot of the restrictions and issues come from anything consumer-related. 

I would just be careful of any condos since many of the buildings along High street have restrictions on STR.

How much it will affect your DTI depends on your existing debt obligations, income, the mortgage of the primary home you want to buy, and the mortgage of the house hack property.I recommend using the 5% down conventional loan product to house hack and only use FHA if you have to since there are more restrictions involved.

You will also discover that vacation rentals are restricted in many parts of Brevard.

there are income restrictions.  

Some hard money / private investors have minimal loan amount restrictions. 

However, there are some restrictions that apply, you'll want to look for details on "bonus entitlement."

There are caps on income, assistance amount, and restrictions on being a first time home buyer.