My father is in the real estate business as a broker for about 40 years and he has taught me a little bit.  

We have a tight budget of 20k for a cosmetic remodel and most of the work we will be doing ourselves along with my father in law who used to work in construction (Hardwood floors, 2 bathrooms, 4 bedrooms.)

I'm a 48 year husband, father of one and a professional tower crane operator by trade. 

What you refuse to see is the workstaff and the elderly being kicked out of their rental homes because investors buy the home and triple the rent, I've seen an 83 year old woman simply thrown out onto the street, I've seen a single father thrown out onto the street, and another family I am acquainted with thrown out because their rent wasn't profitable enough, and these buyers are abusing landlord tenant laws because they know tenants most likely will not do anything about their abuse, such as kicking them out before the lease is up, turning off their utilities, etc. 

Father in law sold an inherited property 12 years ago and carried the note for they buyers. 

Honestly I was thrown into it my father was a builder and had run some of his own investments and flips.

(My father is in Silverton, and brother, in Portland.)

My father and I are handy and have almost finished the basement, adding another bed, bath, and living space.

I paid for the conversion with a 20K personal loan at 10% for 10 years from my Father (my own father, gouging me at 10% interest).

Tell them you purchased their father's property at the tax auction, and they will have to surrender possession of the property or you will sue all of them to enforce your rights.