They knew a dog lived there when they rented it and they rented anyway, knowing they had allergies and chronic asthma they rented a home with carpet. 

, see that under "sale conditions" it's listed as 1031 Exchange, what affect would that have on me - somebody interested in purchasing their property?

We travel for work (healthcare) and chronically live out of MTRs, so it will be our first time operating a shorter term, but won’t be an entirely foreign situation to us.

I would consider the tenant's past, as well as the condition of the unit, my local market, and other factors.

Asset Condition 3.

Purchase price: $123,000 Cash invested: $50,000 Sale price: $210,000 House was empty for 2 years before we took over, is was in deplorable conditions but in a C/B- area.

@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.

Quote from @Khon Kounbandith: The house was in good condition. 

While there are undeniable challenges—higher interest rates, tighter lending conditions, and market uncertainty—there are also unique opportunities that can make real estate a very prudent choice if approached thoughtfully.

However, after renovations, the numbers improve significantly, and the challenge lies in bridging the gap between current and future performance.Expenses typically run at a 30-50% expense ratio for mobile home parks, depending on management and infrastructure conditions.