If the properties you're looking at are close to incorporated areas, the city will have a 3-mile plan or Annexation Plan, that outlines what kind of density they'd like to see in that area and whether your parcel would be considered to annex.

You can also use your regular credit card or debit  card, download those transactions automatically for expenses and label that expense a rental expense for property #X so you can co-mingle personal and rental expenses if you aren't incorporated.

If possible, can I incorporate these 2 business together, or should I start an LLC?

It is about being smart, collecting data, and incorporating to guide you what actions to take.

In my first 6 months I was able to raise 70k in corporate credit lines at 0% interests for 12-18 months and shortly after that I started receiving check book lines with 3% check cashing fees.

@Thierry Van RoyThe concept of the incorporated, sole proprietorship (LLC) does not exist here in Canada either.

For one of my properties, when I incorporate the losses (depreciation, insurance, tax, repairs) in comparison w/ my rental income, I get a net gain.

Two years ago I stepped away from 25 years as an HR Generalist/Director in Corporate America to build and manage a furnished rental business, and I haven't looked back.

I haven't incorporated or opened an LLC yet.  

UBIT still apples to an IRA LLC than incorporates debt financing.