There are not issues with giving funds, but you have to define how they are given - are they a gift, a loan etc...

From there, it's normal DTI/Credit/Cash assessment for the new loan to determine whether you can afford the loan. 

You can also double hack these if you have enough units and live in one unit and use one unit for your business, but of course that decreases your cash flow but increases your usability.You can also use an FHA loan to get a mixed-use property with only 3.5% down if the residential square footage if more than 50% of the total square footage.

I agree with everything @Michael Baum said.Many people, including myself, have used a 10% down second home loan to buy a property used for a STR.

if it was me I would get a credit for those items do your inspection then install them yourself .. just pay cash then refi I guess or use a bridge loan.. or risk having them stolen again..

@Ahmed MoustafaThe general Fannie Mae guidelines you mentioned are for non-renovation loans. 

Just do a 5% conventional for your next property.Not sure why you'd need to refinance out of an FHA loan only because you want to use a FHA loan again. 

If you and your family are willing to house hack and use either an FHA 203k or homestyle renovation loan, the path of least resistance with the lowest risk, in my opinion.If you didn't want to house hack you could try a live-in-flip with those same loan programs! 

College used to be a lot more affordable, I studied in Europe (where college is free) and it blows my mind to see kids with 200k student loan debt trying to get ahead on a 50k job.The housing market has started to drift apart geographically.

Was thinking of taking a Home Equity loan for the downpayment ( @ $100,000-150,000).