So my partner and I just bought a 4 bed 2 bath that is broken up into a 3 bed 1 bath (main house) and a mother-in-law suit that is a 1 bed 1 bath.

My question is can I use my own standard lease form modified to reflect the major elements of the existing lease (assuming that the tenant is in agreement) or would I be better advised to keep the exact wording of the existing lease and just change the relevant names and dates?

We plan to live in the ADU and rent out the main house.The challenge we are facing is the pet policy.

LoLLet's face it, the main reason is finances.

I considered getting my real estate license but I've heard that mainly focuses of laws of real estate rather than its buying and selling processes.

My main concern is finding someone to give such a small loan.

The option agreement is what gives one the option to buy the home without being obligated to purchasing it3- more involved process than simply signing a lease or a purchase agreementIf your main objective is to prevent breaking a lease, finding a property with "month to month" leasing may be your best bet. 

I guess my main rationale is, if you haven't been tracking your expenses on a daily basis, good luck when tax time arrives!

I want to then rent the main home as well.

The main house is a duplex, one 3/2 and one 1/1 units.