It resulted in his guest trashing the basement unit, them getting physical where marks can be seen on both people, screaming and yelling that took place in the back yard, and the neighbors waking up and walking near the backyard to side with the guest the tenant had over.

We have found different non-profits to work with who guarantee rents, deposits, extra money for repairs, and money to turn over the unit between tenants.

Our current focus is working on 1-4 unit fix and flips, but eventually work towards being able to refinance properties and keep and cash flow them.My question is  tailored on the the way I should structure our relationship for the legal and tax base purposes.Should I secure the deals under my business and pay my partner out of my business operating account?

We are preparing our house to turn it into a long term rental unit and plan to house hack a duplex or fourplex (along with our 4 kids 😜).

Recently, we completed a large project that involved adding additional units to a multi-family property and fully rehabilitating existing units, resulting in a great return on investment.

You can always start off on house hacking a multifamily in MI 1-4 units with min 5% down or 3.5% down for FHA.

What they told me was, even though I think this place should get $1100-$1200 a month per unit, it was rented before at $900 per unit (well, the dad's son lived in one and he rented the other to his friend for $900) so I can only get a loan to cover 80% of that amount(or something like that).Does all that make sense? 

I am partners in 2 condo units, and a bunch of multi-family buildings and some single family homes.

No one can answer that because the first question all depends on how your basement is set up with agree (windows, doors, access) and what your town's regulations for legalizing a basement unit (usually way harder than anyone thinks).When you say join a JV, it would depend on your relationship and the asset and the split.

You can make a basement habitable, but not always rentable because the latter would require you to get an updated CO and convert the basement "unit" into a legal dwelling... which would mean your house would go from a legal-2 to a legal-3 fam.