Add a short statement at the end outlining whatever you are changing, have all parties date and sign, and you are done.Example: "Landlord and Tenant agree to extend this lease for an additional 12 months with a new termination date of 12/31/2025 and a new rent rate of $1,950.00 per month."

New construction may be an option, many builders are offering rate buy downs and closing cost assistance and then you get quicker appreciation when they continue to build out the community.

Also, in our experience, 95+% of agents have no clue how to calculate ROI, Cash-on-Cash, Cap Rate, etc., so what are they really going to help an investor with?

I'm looking for a PM group that has a reasonable monthly rate, manages tenant selection well, addresses property issues with quality, and conscientiously and actively turns properties when vacant. 

Looks like you have a good healthy savings rate and make sure you set aside funds for both expected and unexpected expenses if you do house hack.

It seems like you have a reasonable down payment available so offer them a reasonable interest rate. 

Hi,I am planning to buy my first rental property and looking at Harvest, AL. Researching on zillow, I am seeing several new properties under construction in this area with rental properties vacant for over 40 days. Wo...

Take that amount, figure out the mortgage payment based on the interest rate. 

Not sure what the laws are in ME, but in Georgia a first position foreclosure will wipe out the 2nd position lien making them riskier which commands a higher interest rate percentage.

What makes people prefer airbnb than hotel these days, especially the rate of hotels are relatively competitive (airbnb becomes more expensive than it used to be), i.e. is it still a viable business for the most part?