Zinsser Mold Killing Primer is a water-based fungicidal protective coating that can be used to paint over and kill all existing mold, mildew, moss, fungi, odor causing bacteria and any other fungal organisms." 

This is a small project and should prove attractive to several banks if you are a qualified borrower.From a feasibility standpoint the first thing is to check with the city or county to determine what is required for all approvals including site plan and building permits, proffers, water/sewer tap fees, bonding requirements, inspections and CO process and time frame for all approvals.You mentioned utilities are in place but you need to need to check with the utility companies and get an idea of requirements to connect to the water, sewer, power, gas, cable, installation and connection requirements, tap fees, hookup charges, transformer location and relocation, power line and power pole relocation issues etc.Check to see if you have to install any manholes, fire hydrants, curb, gutter, sidewalks, street signs, street lighting any specific street design or access requirements,.Check DOT requirements for access, stop lights and permits, traffic studiesDWQ requirements for permits, permit fees, time framesThis is a broad overview of the process and your civil engineer can handle all of this but it's good for you to know exactly what's required.

In Oregon, there was (probably still is) a program that you could set a saving goal and over the course of a couple of years receive matching money from the organization to help you with your FHA down.

Burleson investor here, in the case you ever want to organize an invitation only get together!

It's also only about 100 feet outside the city limits, so he has access to all the traffic and customers of a city, but doesn't have to mess with residential zoning ordinances.  

I get to see their accounts, not just a credit score, and their criminal check picks up virtually everything as best as I can tell because I see people's traffic tickets all the time.  

The other units are tenants on annual leases.I am concerned whether this may be a negative to the other tenants due to more traffic from strangers every few days, may be more noise at night?

If you decide to do it and need an extra hand organizing DM me, I'm up by hanover but I'd come down by keene for a group.

I have clients like @Bill Brandt who are likely very organized, preparing 10-20 rentals is simply a data entry game and dealing with any changes. 

It's biggest real estate investing organization in town.