Duplex have different zoning that may permit additional units.

Rather than hire as many sales people to do follow ups--set up automated text messages, emails, letters, or postcards to be sent to your best prospects.- Podio has really good integration with other services--like RightSignature for eSignature, Google Docs/Drive, Dropbox, Twilio for SMS, Lob for physical mail--either for marketing or other workflows like invoicing, and a ton of other services.  

Quote from @Galant Ant: Permit delays in NY can derail timelines and budgets for developers and flippers.

FWIW Its California , you probably need a permit  to do just about anything as long as you pay the fee 

Fix-and-flip or builder’s risk insurance should be in place before work begins, and confirm your contractor obtains all necessary permits to avoid delays.

The main property will be my primary residence.My biggest question is, what kind of foundation would you use, (that is to code and will pass inspection/permits in Charlottesville) that is either relatively easy DIY or cheap to outsource.

Partnering with local experts who understand zoning, permitting, and market nuances can help you avoid costly mistakes and maximize returns.If you're in a high-cost area, out-of-state investing can provide access to markets with better entry points and higher ROI potential.

And make sure you drive by prospective properties at night. 

Annual "Permit Fee" of $42 annually for 2025... any insight appreciated.

That's not exactly an up and coming area -- I'd research who built them - can likely find that by going to the SG County Recorded Docs site or by seeing who pulled the permits during const -- Wichita has been on a duplex building boom -- look at the tax value -- They probably have that or less in it on the build - I also doubt they were built to be quality long term -- things such as the trim/cabinets etc -- they all look like the cheapest stuff a guy could buy - if the cabinets aren't oak and there is MDF or pine trim and pre-hung doors with engineered wood jams I'd run.  2-3 yrs ago for $180k -205 or so you could buy duplexes in Maize, Kechi, Valley center all day to builders that were selling them off to investors - not worth that in that area.