Sounds like you got a killer deal and added some instant equity...WELL DONE!

So let's see we have no achieved RAISING the cost of entry real estate by $25k, ADDED more tax's to the populace, but hey, that sprinkling of the 1 demographic, they thank you for that $$$$.

I am told that there is a 26% tax credit with a new solar project along with the ability to depreciate 87% of the cost of the system in the 1st year. Is anyone out there doing this?  

Only a small amount of footage (I believe 150’) can be added for ingress/egress purposes only.  

Will this new wall be required to have electrical service added per code?  

If after adding the additional monthly recurring costs (electricity, gas, water, internet, insurance, lawn care, snow plowing, etc.) to the standard long-term costs (Mortgage, taxes, regular insurance, etc.) the property won't net at least $100 if I can get the average rent I see on FF for that area, then the property isn't worth more investigation.

You state this is 3 units so central air will create problems for you if you are adding AC to all units (who pays electric?). 

If you're adding a lot of value to them that really doesn't make sense for Section 8 in my mind.To be honest, it sounds like you have a large reposition on your hands and will be a difficult and long process unfortunately.

Adding your location on the thread might pop up some lenders that can assist.

As long as the income covers the loan payments, you can continue adding properties to your portfolio, helping you achieve your real estate investment goals faster.3.