Since you have a noise monitor you may be able to use a decibel reading which is the objective measure to determine a legitimate complaint provided you can get it to accurately record the louder noises.

You could make this work ST, MT or LT, depending on how you approach it - the key with unique grounds is owner-provided upkeep and service built into the listing and what permits allow. 

I own a mortgage company, so I have my loan officers use this Fannie Mae income calculation tool for all business for self borrowers: https://singlefamily.fanniemae.com/applications-technology/income-calculator .

House hacking will provide you with an onramp, though, and make it much easier to get started. 

Tell your tenants to provide you with an ADD diagnosis from their doctor. 

Real Estate Agent from Miami Beach, FL - replied 5 years ago MichelleWalker Real EstateProfessional from Chicago, Illinois - replied over 5years ago  andMarkHoopes - replied almost 2 years agoIt appears that you folks have used Jerry Norton's program and you have provided detailed, very helpful commentary here on BP. 

Here in the USA you need what's called a "construction loan" and it's also very hard to find a company that will insure you if you're a newbie.

Additionally, it provides investors with the opportunity to add a unit on a property they already own, simplifying management since the new unit is in the same location.Finding a vacant lot is both expensive and difficult, so the ability to build, subdivide, and create new development opportunities can make financing easier.

I am not a CPA and am not providing legal advice.

But that alone is not quality work, make your calls, provide value and always be learning.