@Imthiaz Ahmed The 4-unit limit is I believe a Fannie Mae and Freddie Mac limitation: http://www.freddiemac.com/singlefamily/news/2017/1128_loan_limits.htmlAnything beyond that, and your investment is no longer backed by the government, which is why you can get the lowest rates on conventional loans (i.e. less risk).The question to ask yourself is, is a commercial loan all that bad?

@David C.The government needs its money.

(This should govern your leases as well) you may not need to consult with an attorney JUST for this issue....It's never a bad idea to run things by a real estate attorney anyways.

I only invest in areas where the local government/communities have good long term strategies in place.  

Check your local governance for how long to retain.In California, for a written lease keep it for 4 years minimum from the date of vacancy. 

Investors decide to work with me as I am credible and trustworthy.

However, I've also heard that the government is lowering their voucher amounts so that they can provide more vouchers to more families.

I'll move with the first buyer with the most credibility.

i thought all these agencies are sponsored by the government ?

Then buy something .. look you must take action or you’ll be like the other 90% of people over 60 that are living on government programs .