I see they suggest offering the tenants the option of paying by Credit Card.

I would suggest really getting to know the smaller areas inside the market, it can be tricky to navigate. 

@Melody T.I can appreciate the additional questions, but unfortunately, you're: 1) getting into the realm of legal advice, and 2) are asking specific questions that can be dependent on the facts. 

The renovations included new flooring, fresh paint, a new HVAC system, updated bathrooms, and the addition of stainless steel appliances and granite countertops.

Any suggestions?

.- rentals do not go under an S-corp, which is why a separate PM company was suggested- S-corp technique on reducing SE tax is both tricky and costly, and you cannot set up your salary arbitrarily- you can only base your 401k on the part that IS subject to SE tax- you usually cannot generate enough "earned income" from this 2-companies setup to make it worthwhile for 401kSee, it is not simple.

Your strategy of converting the garage into an additional dwelling unit (ADU) and using the property for short-term rentals (STRs) sounds like it has paid off well, especially given the unique aspects of the property and its location.Your approach to identifying a unique investment opportunity that was overlooked by others, and your patience in securing the right deal, are key takeaways for anyone looking to invest in real estate.

Additionally, thinking about investing in different property types or enlisting the help of a trusted property management firm may be wise choices.

If you talk to the broker, I strongly suggest you look at it as you are interviewing THEM. 

I would also suggest to get out in the market and meet others doing the same.