I know of a realtor or two who will informally watch over a client's house and at least one house-cleaner who would clean between stays, but that's about all I have.  

Quote from @Jeff Ebert: Looking for referral for great North Myrtle Beach manager for my rental propertyMyrtle Beach Rental Pros L.L.C Www.myrtlebeachrentalpros.com 843 800 2512Full management Maintenance Cleaning Linens Restocking and more

Multiple improvements done on this duplex in 2021, including new roof, gutters, flooring, drywall, electrical, appliances, and heating/cooling unit for the second floor.

Home is also kind of mess ..with weed smoking in the house and dog poo in backyard not cleaning up after and so forth.How to proceed here ?

I painted it, redid the floors, put on new doors and hardware, fixed all the existing issues (leaks in roof, toilets not working, sinks leaking, water damage on exterior and upgraded the panel to a 220V) What was the outcome?

Here is what I proposed:Setup fees : Administration Setup:One Time Fee: $400Guidebook: Using professional photos give the guests a professional tour of the house and how the home works (Wifi passwords // How to use grill // How to use propane fireplace // Hot tub instructions // Sauna instructions //Check in and check out instructions //where extras may be storedOTA (Online Travel Agency) setups: taking professional photos and actively updating your listing on popular platforms;PMS (Property Management System) Setup Smart Pricing Set upWebsite integrationOther (furniture arrangement / design / décor shopping and set up) $50 per hour· Placement fees · Marketing Cost: Variable depending on needs/wants for marketingFacebook AdsGoogle Ads Cleaners: Set up procedures/take pics of expectations· Management fee—30%Guest communicationCleaner communicationSetting Rental rateDealing with small maintenance issuesBooking CoordinationSmart Lock integrationKeeping supplies stocked (TP, paper towel, all cleaning products, coffee, filters, creamer, sugars, teas,)(Receipts would be submitted on a monthly basis for either reimbursement or book keeping purposes)Encouraging guests to leave good reviews by periodically checking in, providing a review template, and ensuring guests receive the amenities they are looking forContinued marketingMajor Maintenance fees—OwnerCleaning and laundry services fees: Cleaning fee to the guest depending on how cleaner wants to charge

Value add was paint, flooring and a little gardening (as though that would add much value).  

Does anyone know if applying for 2 existing apartments on 2nd and  3rd floor with commercial space on ground floor in CMX4  zoning requires fire sprinkler system if no construction is needed? 

Unless you're on the beach, i'd avoid the flip flops and board shorts, but Also I think most people get defenisve or put off by suits when they are knocking on someones door, so Business Casual, collard shirt if that is something you'd wear or a Clean- Non Graphic T (unless you had your own made), clean cut dark denim jeans -- and some clean shoes. 

The main stack, drain lines in the basement floor, trap and the sewer line to the city main are the big ones.You can either knock these out as they become problems or bite the bullet and spend the money.