But this is how I approach planning at the highest level. some additional context you can put that into land and with guidance get non recourse debt on one development deal that will change your life. there's the slow method of one at at time or go bigger for 100+ units with capital raise. tons of strategies but great points all around Scott 

Too few details to answer (Of course this varies county by county, all questions could be answered by reading the (zoning)/building code and/or clarified with a visit to the county planning office).but some clarifications because: lots of things are "tiny homes" but what you describe small houses "on permanent foundations" needs to be clarified , tiny homes could be:-stick built, see below. check your county code/planning dept-stick built cabins/recreational, a specific zoning and potential occupancy/etc restrictions but worth looking into where the zoning allows for it -hud manufactured homes (smaller singlewide perhaps 400sq ft 600sq ft minimum)-non-hud park models (on axles), ansi standards- other "RV's" built on a chassis:  organizations, state agencies, etc - will certify factory built (or sometimes inspected professional built) tiny homes on chassis - to whatever standards ansi, riva, dot/ l&i?

These loans often have interest-only payment options, meaning you only pay the interest for the duration of the loan or a shorter period based on the market conditions.

I have to evict a non-paying tenant.

Work on saving money and have enough for the down payment, reserves, and closing costs. 

When starting, save 10% of every paycheck for your first down payment.

Additionally, house hacking is usually the cheapest way to get into real estate investing due to accessibility to conventional mortgages with lower down payments and interest charges. 

The 203k is NOT your normal rehab project because of the nuances, unique paperwork, timelines, payment structure, etc. that normal contractors struggle with. 

My advice is to look at non-residential commercial. 

FICO ought to be at least 680QuonticRed Canoe Credit UnionWA ORRegionsRiver Bank & Trust, ALRivermark Credit Union, OR 90% LTVSCCU Florida 80% LTV, 2.75% first year promo, not LLCSECU NC 65% LTV rate 2.75% Oct 2021Signature Federal Credit Union 75% LTV (100% on primary residence), VASilvergate Bank, CASound CU"non-owner occupied HELOC, capped at $150K and interest rates are prime + 2%, 3% or 4%, based on credit, not to exceed 70% ltv.”