This is typically done with a title company or lawyer, or whatever is appropriate for your state. 

Or just a lawyer for the paperwork?

I’m not opposed to paying the money to speak to a lawyer, Im sure in hindsight there will be many learnings from this!

In the end, it comes down to whatever advice you decide to take from your lawyer.

I'm no lawyer, but I believe any rent change for any reason needs a new lease, unless it's a month-to-month.

I have, 2x, by people whose lawyers  saw someone with a few buildings and figured they have lots of money.  

Also you need to get your fee out of it.I do not know the specifics but honestly that deal seems WAY too skinny for me.3) You still need to add the cost of doing RE transactions, lawyer fees, closing costs taxes, holding costs , lawn care, utilities, insurance , lending costs .. etc. etc.

Windsor is in the midst of not one, but two, multi-billion dollar bridge construction projects that will add thousands of direct jobs, and thousands more spinoff jobs, to the economy for up to the next 7-10 years.When you factor a major project like this into a situation where there is already a severe supply/demand imbalance and a lack of rental properties, you have a perfect recipe for increasing housing prices and increasing rents.Now we have a perfect storm in Windsor for investors to take advantage of with 2 major bridge projects, growing University and College populations, immigration from countries around the world, migration from residents of other provinces looking to downsize and move to a cheaper city with better weather, and a booming Detroit.  

I will mention it to my lawyer.

i'm looking into BRRRR strategy that in a certain way could speed up of portfolio growing. in case of No US citizen re-finance could be an issue or registered LLC in US with lawyer with power attorney could be sufficient to have money from bank?