You're going to need additional funds to run your business of course, for the unknowns.Sounds like you're looking for a multi unit to live in and rent out the other units?  

.- Investment property appraisals, multi-family in particular, are more work than vanilla owner occupant SFR appraisals, and appraisers do charge more.

I trick I use is to find a comparable property I like and then look up the contractor associated with the building permits in the county or city's permitting system.

If you are looking for a multi-unit property (2-4 units) with an FHA loan, you can use 75% of the fair market rent values (as determined by an appraiser) as qualifying income.

Preferably new SFH's, or multi units.

I am not a financial whiz or a commercial giant by any means, only that I know if we sell this property, the buyer is going condo route, so why couldn't I go that route.I am guessing my biggest mountain at the moment is how could I even possibly get financing for a 30-40 unit complex since in theory we are talking in the multi millions.  

I am also interested in multi-family properties as well as flipping houses.

It can work on higher priced multi family properties because the total of the rents is usually higher.

I currently have a single business partner and we're looking to invest in a multi-family and house hack our investment to raise capital and credit for other deals.

I am interested in multi-family properties, note investing and 1031 exchanges.