Asking in the correct forum will get a better response.Read the RULES!

If you do it right, it’s arguably the best market to invest.Purchase: $80k-$130kRent: $1100-$1500 (no rent control in MI)1% rule: .9%-1.4% rule dealsCoc ROI: 5-12%Total ROI: 20-40%Cash flow: $50-$250/door (after all expenses and budgeting for maint, capex, vacancy)Appreciation: 3-10%+ (has been double digit for a decade)Location: C+, B-These numbers are based on the “sweet spot” in Metro Detroit.

@Polat CaglayanI've never seen a formula but here is a general rule of thumb for multifamily:The class of an apartment refers to the quality of the building, which can be determined by a number of factors, including age, location, and condition: Class A: These are the highest quality apartments, typically built within the last 15 years.

Tax deductions / write-offs should be a second concern.There are some rules that you need to follow to treat a short-term rental as 'active'(non passive) income which would allow you to offset it against other forms of income such as rental income / wages.

And as long as they're current and not breaking rules in the lease, they can say rude things to me.But blasting loud music etc sounds past that.

@Albert Gallucci as many have pointed out, in the commercial space of 100+ apartment buildings and offices, property classes have some pretty decent industry standards.We started applying these to 1-4 unit properties around 10 years ago, which you can verify on our blogs, because we saw too many newbie investors not properly taking into account things like, neighborhood status, tenant pool, property condition, etc.Unfortunately, there's no industry standard for this, but you can use some basic logic to think your way through your own Classifications.

Quote from @Jeff Roth:Monthly rents for mid-term rentals are about 20% (+/-) higher than unfurnished similar long-term rentals.I would not base the income potential for a MTR on a rule of thumb.

Each town has different rules regarding rent control. 

Hey @Mike Nelson, never assume anything about STR rules and regs.Here is the STR rules for Oak Park - https://codelibrary.amlegal.com/codes/oakparkil/latest/oakpa...I would call the city and make sure it is legal for a specific property.Now regarding the famous person angle, sure it can add value to the property or as a STR, but for STR use, I would think you would need it to be in original condition with a lot of the furniture and knick-knacks that were owned by the famous person along with a bunch of photos etc featuring the famous person.If you buy a place that has been totally redone but was owned by someone famous but has no features or things that were theirs, then I don't see it being a draw. 

Looking for something with low acquisition cost, and meets or exceeds the 1% rule.