If you're simply seeking leverage for additional properties you can tap banks and hard money/private money lenders.

Right now the mortgage rates I'm being quoted for a 20% down DSCR is 7.75%. 

The pros would be less hassle since you are dealing with on tenant, but cons would be if that specific tenant does not/cannot pay rent, then it will create extra burden for you to pay your mortgage.

Better to pay your mortgage instead of someone else's. 

I'm just making about $250 net each month off of $1900/month rent (about $1,450 total for mortgage, insurance, taxes, etc.) , but appreciation has helped, the tenant is great, I have a property manager. 

If I can find 3-4 units, I will live and other rent out to cover mortgage.

Our initial idea was to build-to-rent two 1,300 sqft homes on the additional tracts of land, but after speaking with lenders, the current interest rates made this unfeasible.

Only problem it is is that it’s a manufactured home and a lot of lenders doesn’t lend to first time flippers or manufactured homes. 

Lenders face far more regulations when lending on owner occupied properties which may limit your options.

Whether you're an investor, agent, or lender, your insights and advice would be invaluable to me as I embark on this path.