Zoning can be for single family home, 2-4 units and multifamily. 

Especially when there are tons of incentives for grabbing that "low hanging fruit," like there is in your particular situation.IMO your 'low hanging fruit' would be utilizing the new-ish Fannie Mae rule allowing only 3.5%-5% down for owner occupant financing (house hacking) on ALL small multi properties (anything under 4 units, so duplex, triplex or 4-plex).

Good evening, I have a SFR in Miami dade county and this is the zoning info from the county website:Land UseMuni ZonePA ZoneGENERALRU-2 5700 - DUPLEXES - GENERALFrom the county website I was redirected to:  https://library.municode.com/fl/miami_-_dade_county/codes/co...and I think the construction of a new unit in the back (There should be enough space)  can potentially be approved based on the exception (3)ARTICLE XV. - RU-2, TWO-FAMILY RESIDENTIAL DISTRICT[19]SHARE LINK TO SECTIONPRINT SECTIONDOWNLOAD (DOCX) OF SECTIONSEMAIL SECTIONCOMPARE VERSIONSFootnotes: --- (19) ---Cross reference— Height of fences, walls and hedges in RU Districts, § 33-11; location of swimming pools in RU-2 Districts, § 33-20(c); maximum setback for principal residential buildings in RU-2 Districts, § 33-45.Sec. 33-201. - Uses permitted.SHARE LINK TO SECTIONPRINT SECTIONDOWNLOAD (DOCX) OF SECTIONSEMAIL SECTIONCOMPARE VERSIONSNo land, body of water and/or structure shall be used or permitted to be used and no structure shall be hereafter erected, constructed, moved, reconstructed or structurally altered for any purpose in an RU-2 District which is designed, arranged, or intended to be used or occupied for any purpose, unless otherwise provided for, excepting for one or more of the following uses:(1)Every use permitted in RU-1, RU-1M(a) and RU-1M(b) Districts.(1.1)Workforce housing units in compliance with the provisions of Article XIIA of this Code.(2)On lots meeting the requirements for two-family use, every use as a duplex or two-family residence, including two private garages.

All bids are to be based on the bidder’s own information and knowledge of the property, learned through his or her own efforts, and not on any representation or comments made by the Committee.The property is being sold free and clear of the lien(s) being foreclosed, and of all interests subsequent in right to that lien.The property is being sold subject to:All taxes due the municipality not foreclosed by this action,Water and sewer use charges not foreclosed by this action,All building and zoning regulations of the municipality which affect this property,All building lines, easements, restrictions and all other matters concerning this property which appear of record,The rights of any person in possession or occupancy of the property who have not been made parties to this foreclosure action,The right of the United States of America to redeem the property, if applicable under Federal law,Any other liens on this property which have not been foreclosed by this action.Further description of the property and further terms of the sale may be obtained from the Committee or from the court file.

My knowledge is limited and there are obviously variables in location, size of units, amenities, expenses, TI, etc.

Hi Mark,Sounds about right for a 5 unit.

I'm an experienced developer in the Canadian real estate market, with a track record of successfully developing over 800+ units.

I’d like to buy a property with a separate unit (eg basement unit) that I can rent out at the same time while living there.

I have 11 units in the Twin Cities.

The listing MUST be on the local MLS.There are hundreds of MLSs in the United States.