A unit renting for $700 probably can't go straight up to $1,200 overnight with no updates unless your property looks like the other ones in the area renting for $1,200 and offers similar finishes/ amenities. 

Do it yourself with TurboTax (or similar software)If your rental is pretty simple (one property, basic income & expenses), you can learn the basics and still save money.

This is one of the reasons the HUD FHA 203k Consultant exists.

What kind of area is the 50K one in?

.🔹 Step 19 & 20: HVAC (Heating, Ventilation & Air Conditioning)A working HVAC system is a huge deal—no one wants to buy a house that’s too hot in the summer or freezing in the winter.

I would advise you to read some books so as to be familiar with strategiesHere are a fewSee if you can get a copy of The Millionnaire Real Estate Investor by Keller.The Slight Edge and Atomic Habits too.https://www.amazon.com/Building-Wealth-One-House-Time/dp/007...

Because you occupy one of the units, the insurance may differ from a standard homeowner policy.

I see no one replied here, did you end up working with them? 

One of the family likes their room cooler at night, boom, easy to do.

I was going through some of my old blog entries and found this one from 38 months ago.