There's a very good chance in your market that your price per unit will be substantially lower for a 4-plex than a duplex, but rents might be quite similar. 

“While some individual property values may have substantially larger percentage increases, others may see lower increases.”This was from an article posted in the Fort Worth Star Telegram.....How many of you saw unreal increases?   

(Or, more Importantly, what factors influence how long a tenant will stay in your property?)

What bothered me is the 24% YoY increase in assesses value without any substantial upgrades being performed.I sent them a protest and hope that they will just reduce it a little bit at least.

That is a substantial price difference.

If you can properly according to code drill the holes and run the wire leaving enough wire at each end for an electrician to connect, you will save a substantial amount of money.

From this appraisers view, it is important to consider the strength of the data as it relates to what you are trying to figure out.There is a significant difference between an offered rental price and an offered sale price.A sale price offering is usually at the whim of the seller, and influence of the agent, but very much will most often be placed at the highest end of the range to see what happens.

Do not let seller influence the inspection.

I am very unclear on what you were writing in paragraph 2 and 3, but it sounds that you are quite fresh to real estate, and you are influenced by READING without actual experience, so as a person that likes to help my colleagues (as you  mentioned in paragraph 3) I will try to explain to you a drop as far as I understand you are unclear about.on your question why I don't give my properties to property management companies, if I don't like them.

For folks that don't have friends, family, cash, or a willing banker, there are substantial numbers of lenders willing to lend you funds for a flip deal.