Best loan for this scenario

[Cherie Pierce]

I'm currently renting my primary home as a STR vacation home in SW FL.

I want to buy a primary property in another state and convert my existing property into fulltime vacation rental and use the cash flow from that property to qualifye for another mortgage..

My DTI-41%

(not including rental income)

700 FICO

The new primary home is a residential  acreage with a building that has a commercial tenant with a 5 year lease of $1500 rent a month..

Can that income from the building tenant be used to qualifye for the loan???

Can I use rental income if I did a long-term rental on my current home. 

And the last bit of information that may be relevant....

The acreage property that I want to buy and use as primary will most likely appraise $300,000 mote than purchase price.

I also have approximately $200,000 equity in my current primary.. FHA Loan..I've owned and lived in it 6 yrs.

Can someone out there help me with this...how can this be put together from the lending side..

Thank you