I have had previous requests for help with this situation, and that's the advice I consistently offer.

Every situation is different... but if those POHs are busted up the park is worth only a fraction of what he is asking.

I'd really appreciate hearing from you if you’ve been in a similar situation or have any insights.

The only way for you to understand the situation and evaluate your options is to ask a lot of questions.  

I use credit cards, write checks, and pay in cash.Each situation can dictate the payment type. 

You have provided a variety of situations where doing a cost segregation study would be useful.  

Now the situation has occurred that we need to rent the house out in order to help pay for his long term care expenses. 

Qualified Joint Venture reporting is not available in this situation.

However, after receiving the survey results, I discovered that the house is located less than 1 foot over the sublot line (see attached image).Here are the options I’m considering:Rent the current house for market value (~$1,500–1,600/month) and convert the detached garage into an ADU to rent for ~$1,000/month.Relocate the house to split the lot, then sell the newly created lot (~$100,000) while renting out the existing house.Relocate the house to split the lot and build a new home on the second lot.Demolish the current house and garage, split the lot, and build two new homes.At this time, I am uncertain about the cost of relocating the house.Questions for the community:Has anyone faced a similar situation?

It would just need to be a situation where they have great contact with the person doing that managing of the project (I.e. have known the person for years, great reputation, person has experience in flipping etc.).