Hi I have a couple of tax questions.I sold my primary residence last year, where I've both lived and rented out half the house for the last few years.

Looking to refinance my primary residence

At least a contractor, and property manager if you're using one, the lender is also very importantIf using hard money be very careful, and I recommend finding a traditional lender to refinance you out of the property in the future and make sure they are on board with what you are doing before you make an offer.

My primary focus is to great passive income and too secure Financial freedom so I can enjoy the time I’m given with family and friends.My main focus is buy and hold rentals (single family, and multi units) but wouldn’t be opposed to a fix and flip or wholesale, I personally think having some of both helps with an exit strategy depending on the market.

I am getting pulled in all kinds of directions with really knowing if I can purchase a 4 unit as my primary residence with a FHA loan and be able to use the rental income as part of my DTI?

If you get zero applicants, consider if your rent is too high.3) Consider getting rid of the sign in your yard, if that's the primary source of these leads. 

I have 4 investment properties and bought my primary residence as an REO also. 

You didn't ask but to confirm - yes you can combine sec 121 primary residence exclusion and a 1031 exchange to complete eliminate and defer all tax on gain from the sale - a great strategy. 

For moving there as a primary it depends on what you are used to but for investment purposes depending on where you are there's forms of increased development and is a marked for gentrification.

The primary goal of a wholesaler is to find good deals.