As a result, her and I were able to buy our very first investment home back in 2006 from the brotherly love city of Philly which is where I also met my husband. 

Haha, calm down brother.

Installing a patio door In Simcoe can be costly but with my expertise, I can have your patio door installed at a more affordable price, I have been installing windows and doors for over a decade I install with members of my family mainly my dad as well as my brothers.

Eventually I want to get into single family and multi family rentals.As far as effort or work on the fixers;  my brother in law is quite handy and my next door neighbor has said he would help in anything that is out of my scope of expertise. 

I was talking to my brother on the phone and would like to get others educated opinions on the matter.

The mortgage is $1400 and the house is worth $250k.I did tell him if it is okay for him,I could take up the mortgage and he says he would get back to me as he also as a brother and uncles to talk with.The house is close to my work place as well.Please, does anyone has a thought on this?

These should be separate bulleted lists you provide to your borrower so they can send to their title company and hazard insurance broker.Now that you showed an interest in lending with no experience, you will no doubt receive DMs from every crackpot and their brother trying to convince you to lend them money.

Your name and credit would stay with the existing note, which you would keep paying on - ideally yourself with money you receive from the "buyer", because if they don't pay your credit is wrecked and your house is in foreclosure.If you search on here you'll see everyone and their brother looking to do Subto and it's a nightmare unless the buyer has the funds to pay the note off if/when the original lender figures out you don't occupy the property any more and are attempting to do what you want to do, since most loans are going to specify that performance.  

My brother lives in La Jolla and I know hundreds of investors in coastal Southern Cal. 

Come on think about it, have your brother or sister come live with you after you have been living by yourself for 5 years......it won't be a peaches and cream.